Double Star Calculator - Results


STF 2758 AB - Astrometric and kinematic properties
Gaia Source ID - Star A          : 1872046609345556480     Simbad
Gaia Source ID - Star B          : 1872046574983497216     Simbad
Observation Epoch : J2025.715 / 2025-09-19 Angular Separation : 32.151 ± 0.0006 arcsec Position Angle : 154.23 ± 0.0010 degree
Star A/B Epoch : J2016.000 / J2016.000 Angular Separation : 31.593 ± 0.0001 arcsec Position Angle : 152.57 ± 0.0001 degree Projected Separation : 110 au Spatial Separation : 114 ± 39 au Parallax Significance : 0.16 σ 3D Space Velocity Angle : 0.34 ± 0.01 degree ΔProper Motion Angle : 0.42 ± 0.00 degree ΔTotal Proper Motion : 103.40 ± 0.06 mas/yr ΔTangential Velocity : 1.72 ± 0.02 km/s ΔRadial Velocity : 1.38 ± 0.17 km/s ΔSpeed (scalar) : 2.20 ± 0.10 km/s ΔRelative Velocity (3D) : 2.29 ± 0.10 km/s

Aladin Lite Sky Atlas



Star A - Stellar Data
Gaia Source ID                   : 1872046609345556480           VizieR
Epoch : J2016.000 Right Ascension (RA) : 21h 06m 59.64s Declination (Dec) : 38° 45' 49.90" Distance : 3.50 ± 0.00 pc Distance : 11.40 ± 0.00 ly Magnitude (G-band) : 4.77 mag Absolute Magnitude : 7.05 ± <0.01 mag Stellar Extinction : 0.00 ± <0.01 mag Spectral Type (BP/RP) : K Bolometric correction : -0.63 mag Luminosity : 0.21 + 0.00 / − 0.00 L☉ Log(Luminosity) : -0.67140 Effective temperature (Teff) : 4353.74 +13.61 / - 3.86 K Log(Teff) : 3.63886 Mass estimation : 0.77 M☉ RUWE : 1.20 Position Angle of Proper Motion : 52.03 ± 0.00 degree Total Proper Motion : 5282.10 ± 0.06 mas/yr Tangential Velocity : 87.55 ± 0.02 km/s Radial Velocity (Gaia) : -65.97 ± 0.12 km/s Space Velocity : 109.63 ± 0.07 km/s

Star A - Selected astrophysical parameters
DSC-Combmod binary star          :       0.00
DSC-Specmod binary star          :       0.06
Radius from GSP-Phot Aeneas      :       0.68  ±   0.01          R☉
Spectral type from ESP-ELS       :          K
Radius of the star from FLAME    :       0.68  ±   0.02          R☉
Bolometric correction            :      -0.25                    mag
Luminosity of the star (FLAME)   :       0.15  ±   0.01          L☉
Mass of the star from FLAME      :       0.68  ±   0.04          M☉
FLAME quality indicators         :         00
  Quality                        :       OK
  Source                         :       Parallax used
Evolutionary stage from FLAME    :        288      Main Sequence (early)

Star A - Double Star Quality Metrics
Parallax over error :   4774.757 : very good
RUWE                :      1.200 : good astrometric fit (single star)
Non Single Star     :            : Single Star
Duplicated source   :      false : single source
G magnitude         :      4.767 : G > 3 mag, photometry reliable
Excess noise        :      0.527 : Good fit
  Significance      :    438.752 :   Minor noise, likely negligible
BP-RP excess factor :      1.261 : photometry consistent
Visibility periods  :         24 : high, indicates well observed star
IPD multi-peak frac :         0% : single peak detected
IDP GoF harmonic amp:      0.024 : unobtrusive (single star source)


Star B - Stellar Data
Gaia Source ID                   : 1872046574983497216           VizieR
Epoch : J2016.000 Right Ascension (RA) : 21h 07m 0.88s Declination (Dec) : 38° 45' 21.86" Distance : 3.50 ± 0.00 pc Distance : 11.40 ± 0.00 ly Magnitude (G-band) : 5.45 mag Absolute Magnitude : 7.73 ± <0.01 mag Stellar Extinction : 0.00 ± <0.01 mag Spectral Type (BP/RP) : K Bolometric correction : -0.63 mag Luminosity : 0.11 + 0.00 / − 0.00 L☉ Log(Luminosity) : -0.94493 Effective temperature (Teff) : 3889.63 +26.65 / -22.77 K Log(Teff) : 3.58991 Mass estimation : 0.66 M☉ RUWE : 0.96 Position Angle of Proper Motion : 52.45 ± 0.00 degree Total Proper Motion : 5178.71 ± 0.03 mas/yr Tangential Velocity : 85.84 ± 0.01 km/s Radial Velocity (Gaia) : -64.59 ± 0.12 km/s Space Velocity : 107.43 ± 0.07 km/s

Star B - Selected astrophysical parameters
DSC-Combmod binary star          :       0.00
DSC-Specmod binary star          :       0.12
Radius from GSP-Phot Aeneas      :       0.66  ±   0.01          R☉
Spectral type from ESP-ELS       :          K
Radius of the star from FLAME    :       0.68  ±   0.02          R☉
Bolometric correction            :      -0.43                    mag
Luminosity of the star (FLAME)   :       0.09  ±   0.01          L☉
FLAME quality indicators         :         20
  Quality                        :       Mass/Age not available
  Source                         :       Parallax used
Evolutionary stage from FLAME    :        345      Main Sequence (mid)

Star B - Double Star Quality Metrics
Parallax over error :   9882.616 : very good
RUWE                :      0.960 : good astrometric fit (single star)
Non Single Star     :            : Single Star
Duplicated source   :      false : single source
G magnitude         :      5.451 : G > 3 mag, photometry reliable
Excess noise        :      0.257 : Good fit
  Significance      :    104.435 :   Minor noise, likely negligible
BP-RP excess factor :      1.299 : photometry consistent
Visibility periods  :         25 : high, indicates well observed star
IPD multi-peak frac :         1% : mulitple peaks detected (possible double)
IDP GoF harmonic amp:      0.029 : unobtrusive (single star source)

Hertzsprung-Russell Diagram of the Double-Star
Positions of both components within the HRD, either derived from calculated luminosities and
effective temperatures (Teff) from the Gaia GSP-Phot Aeneas library (plotted as solid circles)
or estimated from the color index (bp_rp) measured by Gaia (plotted as open circles).


Double Star plausibility checks
Common Proper Motion

Classification acc. to Harshaw     :
===================================
rPM (Proper Motion Ratio)          :        0.02     (CPM)

Co-Moving

UWLE for Co-Moving Pairs (3D)      :
===================================
COMOV: Velocity Evidence Indicator :        0.81     (Strong)
COMOV: Distance Evidence Indicator :        1.00     (Strong)
Co-Moving Total Evidence Indicator :        0.90     (Strong)

rPM/COMOV Agreement                :                 (High)

Binarity

Separation, Sigma and Reliability  :
===================================
Projected Separation               :         110     au
Spatial Separation                 :         114  ±       39  au
  1-Sigma Range                    : [       110,        152] au
  Significance                     :        0.16     σ
  Note: 3D distance not significantly resolved

3D spatial distance probabilities : =================================== P(D-3D <= 221 au) : 99.5 % (2.0 * D-projected) P(D-3D <= 485 au) : 100.0 % (D-critical) P(D-3D <= 1000 au) : 100.0 % (Intermediate) P(D-3D <= 2500 au) : 100.0 % (Wide binary) P(D-3D <= 10000 au) : 100.0 % (Wide binary) P(D-3D <= 20000 au) : 100.0 % (Very wide binary) P(D-3D <= 50000 au) : 100.0 % (Extremely wide) P(D-3D <= 206265 au) : 100.0 % (Jacobi radius)

Proper Motion and Velocity         :
===================================
rPM (Proper Motion Ratio)          :        0.02     (CPM)
ΔRelative Velocity (3D)            :        2.29  ±  0.10   km/s

UWLE for Wide Binaries (3D)        :
===================================
WBS: Velocity Evidence Indicator   :        0.87     (Strong)
WBS: Distance Evidence Indicator   :        1.00     (Strong)
Binarity Total Evidence Indicator  :        0.93     (Strong)

Orbital & Binding Dynamics         :
-----------------------------------
Est. orbital period at 3D Sep.     :      874.80            years
Escape Velocity                    :        4.74            km/s (Bound)
3D Velocity Difference             :        2.29  ±  0.10   km/s
Circular Orbital Velocity          :        3.35            km/s
Binding Indicator η                :        0.23     (Strongly Bound)
  η < 0.5 : Strongly bound / 0.5 ≤ η < 1.0: Bound / η ≥ 1.0 : Unbound


UWLE for Wide Binaries (2D)        :
===================================
WBS: Velocity Evidence Indicator   :        0.88     (Strong)
WBS: Distance Evidence Indicator   :        1.00     (Strong)
Binarity Total Evidence Indicator  :        0.94     (Strong)

Orbital & Binding Dynamics         :
-----------------------------------
Est. orbital period at lower bound :      839.50            years
Escape Velocity                    :        4.80            km/s (Bound)
3D Velocity Difference             :        2.29  ±  0.10   km/s
Circular Orbital Velocity          :        3.40            km/s
Binding Indicator η                :        0.23     (Strongly Bound)
  η < 0.5 : Strongly bound / 0.5 ≤ η < 1.0: Bound / η ≥ 1.0 : Unbound

UWLE for Tight Binaries (2D) : =================================== TBS: Velocity Evidence Indicator : 0.88 (Strong) TBS: Distance Evidence Indicator : 0.99 (Strong) Binarity Total Evidence Indicator : 0.93 (Strong) Orbital & Binding Dynamics : ----------------------------------- Est. orbital period at lower bound : 839.50 years Escape Velocity : 4.80 km/s (Bound) 3D Velocity Difference : 2.29 ± 0.10 km/s Circular Orbital Velocity : 3.40 km/s Binding Indicator η : 0.23 (Strongly Bound) η < 0.5 : Strongly bound / 0.5 ≤ η < 1.0: Bound / η ≥ 1.0 : Unbound
UWLE Evidence Indicators - Parametrization:
===========================================
Mode                 Condition  s0         v0              Δx         Uncertainty
---------------------------------------------------------------------------------
Co-Moving                -         1.0 pc    5 km/s        spatial    σspatial
Wide Binaries (3D)       -      20,000 au  ∝√1/dspatial     spatial    σspatial
Wide Binaries (2D)   RI < 3.0   20,000 au  ∝√1/dprojected   projected  σspatial
Tight Binaries (2D)  RI < 3.0    1,000 au  ∝√1/dprojected   projected  σprojected

Metallicity (Experimental / Not validated)

Metallicity (Gaia DR3, GSP-Phot)   :
===================================
Metallicity Star A - [M/H]         :      0.2244  ± 0.0480 dex
  Metallicity reliability factor A :        1.00
Metallicity Star B - [M/H]         :     -0.4840  ± 0.0607 dex
  Metallicity reliability factor B :        1.00
Metallicity Difference             :      0.7084           dex
Combined uncertainty               :      0.2238           dex
Sigma-Distance (Z-Score)           :      3.17 σ
  Compatibility                    :  Inconsistent (likely different)

Note: Z-Score calculation accounts for a 0.21 dex systematic uncertainty
      floor based on Gaia DR3 GSP-Phot validation studies

-- Experimental module – results are preliminary and not validated --

RUWE parameters
RUWE probability for a binary system (Star A) :  1.20 : Zero
RUWE probability for a binary system (Star B) :  0.96 : Zero

Separation and position angle as a function of Julian Epoch
Note: Separation and position angle for different epochs are derived solely
from Gaia proper motion measurements; possible orbital motion is not considered.

-- For epoch J[1900-2100], computed using Gaia proper motions --

Click to expand/collapse - Separation and Position Angle for J-Epoch:
Epoch      Sep[″]   e_Sep[″]    PA[°]     e_PA[°]
-------------------------------------------------
1900.0     27.432    0.007     128.764    0.014
1901.0     27.445    0.007     128.994    0.014
1902.0     27.459    0.007     129.223    0.014
1903.0     27.472    0.007     129.453    0.014
1904.0     27.486    0.007     129.682    0.014
1905.0     27.501    0.007     129.910    0.014
1906.0     27.516    0.007     130.139    0.014
1907.0     27.532    0.007     130.367    0.013
1908.0     27.548    0.007     130.595    0.013
1909.0     27.564    0.007     130.823    0.013
1910.0     27.581    0.006     131.050    0.013
1911.0     27.598    0.006     131.277    0.013
1912.0     27.616    0.006     131.504    0.013
1913.0     27.634    0.006     131.731    0.013
1914.0     27.652    0.006     131.957    0.012
1915.0     27.671    0.006     132.183    0.012
1916.0     27.691    0.006     132.408    0.012
1917.0     27.710    0.006     132.634    0.012
1918.0     27.731    0.006     132.859    0.012
1919.0     27.751    0.006     133.083    0.012
1920.0     27.772    0.006     133.308    0.012
1921.0     27.794    0.006     133.532    0.012
1922.0     27.816    0.006     133.755    0.011
1923.0     27.838    0.006     133.978    0.011
1924.0     27.861    0.006     134.201    0.011
1925.0     27.884    0.006     134.424    0.011
1926.0     27.908    0.006     134.646    0.011
1927.0     27.932    0.005     134.868    0.011
1928.0     27.956    0.005     135.089    0.011
1929.0     27.981    0.005     135.310    0.011
1930.0     28.007    0.005     135.531    0.010
1931.0     28.032    0.005     135.751    0.010
1932.0     28.059    0.005     135.970    0.010
1933.0     28.085    0.005     136.190    0.010
1934.0     28.112    0.005     136.409    0.010
1935.0     28.140    0.005     136.627    0.010
1936.0     28.167    0.005     136.845    0.010
1937.0     28.196    0.005     137.063    0.010
1938.0     28.224    0.005     137.280    0.009
1939.0     28.253    0.005     137.497    0.009
1940.0     28.283    0.005     137.713    0.009
1941.0     28.312    0.005     137.929    0.009
1942.0     28.343    0.005     138.144    0.009
1943.0     28.373    0.004     138.359    0.009
1944.0     28.404    0.004     138.574    0.009
1945.0     28.436    0.004     138.788    0.009
1946.0     28.467    0.004     139.001    0.008
1947.0     28.500    0.004     139.214    0.008
1948.0     28.532    0.004     139.427    0.008
1949.0     28.565    0.004     139.639    0.008
1950.0     28.599    0.004     139.850    0.008
1951.0     28.632    0.004     140.061    0.008
1952.0     28.667    0.004     140.272    0.008
1953.0     28.701    0.004     140.482    0.007
1954.0     28.736    0.004     140.692    0.007
1955.0     28.771    0.004     140.901    0.007
1956.0     28.807    0.004     141.109    0.007
1957.0     28.843    0.004     141.317    0.007
1958.0     28.880    0.004     141.525    0.007
1959.0     28.917    0.003     141.731    0.007
1960.0     28.954    0.003     141.938    0.007
1961.0     28.991    0.003     142.144    0.006
1962.0     29.029    0.003     142.349    0.006
1963.0     29.068    0.003     142.554    0.006
1964.0     29.106    0.003     142.758    0.006
1965.0     29.146    0.003     142.962    0.006
1966.0     29.185    0.003     143.165    0.006
1967.0     29.225    0.003     143.367    0.006
1968.0     29.265    0.003     143.569    0.006
1969.0     29.306    0.003     143.771    0.005
1970.0     29.346    0.003     143.972    0.005
1971.0     29.388    0.003     144.172    0.005
1972.0     29.429    0.003     144.372    0.005
1973.0     29.471    0.003     144.571    0.005
1974.0     29.514    0.003     144.770    0.005
1975.0     29.556    0.003     144.968    0.005
1976.0     29.599    0.002     145.165    0.005
1977.0     29.643    0.002     145.362    0.005
1978.0     29.687    0.002     145.559    0.004
1979.0     29.731    0.002     145.754    0.004
1980.0     29.775    0.002     145.949    0.004
1981.0     29.820    0.002     146.144    0.004
1982.0     29.865    0.002     146.338    0.004
1983.0     29.911    0.002     146.531    0.004
1984.0     29.956    0.002     146.724    0.004
1985.0     30.003    0.002     146.916    0.004
1986.0     30.049    0.002     147.108    0.003
1987.0     30.096    0.002     147.299    0.003
1988.0     30.143    0.002     147.489    0.003
1989.0     30.191    0.002     147.679    0.003
1990.0     30.238    0.002     147.869    0.003
1991.0     30.287    0.002     148.057    0.003
1992.0     30.335    0.001     148.245    0.003
1993.0     30.384    0.001     148.433    0.003
1994.0     30.433    0.001     148.619    0.002
1995.0     30.483    0.001     148.806    0.002
1996.0     30.532    0.001     148.991    0.002
1997.0     30.582    0.001     149.176    0.002
1998.0     30.633    0.001     149.361    0.002
1999.0     30.684    0.001     149.544    0.002
2000.0     30.735    0.001     149.727    0.002
2001.0     30.786    0.001     149.910    0.002
2002.0     30.838    0.001     150.092    0.002
2003.0     30.890    0.001     150.273    0.001
2004.0     30.942    0.001     150.454    0.001
2005.0     30.995    0.001     150.634    0.001
2006.0     31.048    0.001     150.813    0.001
2007.0     31.101    0.001     150.992    0.001
2008.0     31.154    0.000     151.171    0.001
2009.0     31.208    0.000     151.348    0.001
2010.0     31.262    0.000     151.525    0.001
2011.0     31.317    0.000     151.702    0.001
2012.0     31.371    0.000     151.877    0.000
2013.0     31.426    0.000     152.053    0.000
2014.0     31.482    0.000     152.227    0.000
2015.0     31.537    0.000     152.401    0.000
2016.0     31.593    0.000     152.574    0.000
2017.0     31.649    0.000     152.747    0.000
2018.0     31.706    0.000     152.919    0.000
2019.0     31.763    0.000     153.091    0.000
2020.0     31.820    0.000     153.261    0.000
2021.0     31.877    0.000     153.432    0.001
2022.0     31.935    0.000     153.601    0.001
2023.0     31.992    0.000     153.770    0.001
2024.0     32.051    0.000     153.939    0.001
2025.0     32.109    0.001     154.106    0.001
2026.0     32.168    0.001     154.274    0.001
2027.0     32.227    0.001     154.440    0.001
2028.0     32.286    0.001     154.606    0.001
2029.0     32.345    0.001     154.771    0.001
2030.0     32.405    0.001     154.936    0.001
2031.0     32.465    0.001     155.100    0.002
2032.0     32.526    0.001     155.264    0.002
2033.0     32.586    0.001     155.427    0.002
2034.0     32.647    0.001     155.589    0.002
2035.0     32.708    0.001     155.751    0.002
2036.0     32.770    0.001     155.912    0.002
2037.0     32.831    0.001     156.072    0.002
2038.0     32.893    0.001     156.232    0.002
2039.0     32.955    0.001     156.391    0.002
2040.0     33.018    0.001     156.550    0.003
2041.0     33.080    0.002     156.708    0.003
2042.0     33.143    0.002     156.865    0.003
2043.0     33.206    0.002     157.022    0.003
2044.0     33.270    0.002     157.178    0.003
2045.0     33.333    0.002     157.334    0.003
2046.0     33.397    0.002     157.489    0.003
2047.0     33.461    0.002     157.644    0.003
2048.0     33.526    0.002     157.797    0.003
2049.0     33.590    0.002     157.951    0.003
2050.0     33.655    0.002     158.103    0.004
2051.0     33.720    0.002     158.256    0.004
2052.0     33.786    0.002     158.407    0.004
2053.0     33.851    0.002     158.558    0.004
2054.0     33.917    0.002     158.708    0.004
2055.0     33.983    0.002     158.858    0.004
2056.0     34.049    0.002     159.007    0.004
2057.0     34.116    0.003     159.156    0.004
2058.0     34.183    0.003     159.304    0.004
2059.0     34.250    0.003     159.451    0.004
2060.0     34.317    0.003     159.598    0.004
2061.0     34.384    0.003     159.744    0.005
2062.0     34.452    0.003     159.890    0.005
2063.0     34.520    0.003     160.035    0.005
2064.0     34.588    0.003     160.179    0.005
2065.0     34.656    0.003     160.323    0.005
2066.0     34.725    0.003     160.467    0.005
2067.0     34.793    0.003     160.610    0.005
2068.0     34.862    0.003     160.752    0.005
2069.0     34.931    0.003     160.894    0.005
2070.0     35.001    0.003     161.035    0.005
2071.0     35.070    0.003     161.175    0.005
2072.0     35.140    0.003     161.315    0.006
2073.0     35.210    0.003     161.455    0.006
2074.0     35.280    0.004     161.594    0.006
2075.0     35.351    0.004     161.732    0.006
2076.0     35.422    0.004     161.870    0.006
2077.0     35.492    0.004     162.007    0.006
2078.0     35.563    0.004     162.144    0.006
2079.0     35.635    0.004     162.280    0.006
2080.0     35.706    0.004     162.415    0.006
2081.0     35.778    0.004     162.550    0.006
2082.0     35.850    0.004     162.685    0.006
2083.0     35.922    0.004     162.819    0.006
2084.0     35.994    0.004     162.952    0.007
2085.0     36.066    0.004     163.085    0.007
2086.0     36.139    0.004     163.218    0.007
2087.0     36.212    0.004     163.349    0.007
2088.0     36.285    0.004     163.481    0.007
2089.0     36.358    0.004     163.611    0.007
2090.0     36.431    0.005     163.742    0.007
2091.0     36.505    0.005     163.871    0.007
2092.0     36.579    0.005     164.000    0.007
2093.0     36.653    0.005     164.129    0.007
2094.0     36.727    0.005     164.257    0.007
2095.0     36.801    0.005     164.385    0.007
2096.0     36.876    0.005     164.512    0.008
2097.0     36.950    0.005     164.639    0.008
2098.0     37.025    0.005     164.765    0.008
2099.0     37.100    0.005     164.890    0.008
2100.0     37.175    0.005     165.015    0.008




Measurements for STF 2758 AB
 
WDS ID      Discovr     Comp  #    Sep      PA       Epoch      Obs  Telescope     Camera    Note
---------------------------------------------------------------------------------------------------
21069+3845  STF 2758    AB    2    32.16"   154.4°   B2025.720  HWI  120/900 APO   ASI678MM  
21069+3845  STF 2758    AB    1    32.24"   154.3°   B2025.723  HWI  120/900 APO   ASI678MM  Seeing

*21069+3845 STF 2758    AB    1    32.18"   154.4°   B2025.720  HWI  120/900 APO   ASI678MM  
*21069+3845 STF 2758    AB    1    32.13"   154.4°   B2025.720  HWI  120/900 APO   ASI678MM  

-- Image of STF-2758-AB-taken with Equinox 120/900 APO --


WDS record for STF 2758 AB
wds_id                       : 21069+3845
discoverer_code              : STF
discoverer_number            : 2758
discoverer_components        : AB
date_first                   : 1753
date_last                    : 2024
num_of_obs                   : 1814
pa_first                     : 35
pa_last                      : 154
sep_first                    : 19.6
sep_last                     : 32.1
mag_primary                  : 5.35
mag_secondary                : 6.1
spectral_type                : K5V+K7V
primary_proper_motion_RA     : 417
primary_proper_motion_DEC    : 326
secondary_proper_motion_RA   : 412
secondary_proper_motion_DEC  : 313
dm_number                    : +38 4343
notes                        : NO P
precise_coordinate           : 210653.95+384457.9
                             : 21:06:53.95 +38:44:57.9

WDS Notes:
----------
N: Notes found in WDSNOT MEMO of WDS
O: Orbit described in WDSNOT MEMO and has entry in Orbit Catalog
P: 100-year proper motion in right ascension and declination


Orbital Elements for STF 2758 AB
WDS: STF 2758 AB WDS ID/Discoverer
P: 664.370 Orbital period (years)
a: 24.36 Semi-major axis (arcseconds)
i: 53.29 Inclination (degrees)
Ω: 174.88 Longitude of ascending node (degrees)
T: 1700.370 Epoch of periastron passage (year)
e: 0.457 Eccentricity
ω: 149.32 Argument of periastron (degrees)
Start-Year: 1692.815 Year
End-Year: 2357.185 Year
Epoch: 2025.72 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF 2758 AB
Position: 210653.95+384457.9 Epoch-2000 right ascension and declination
WDS-ID: 21069+3845 WDS designation
Discoverer Code: STF 2758 AB Discover designation and components
ADS number: 14636 Aitken Double Star catalog
HD number: 201091 HD catalog number
Hipparcos number: 104214 Hipparcos catalog number
V1: 5.20 Magnitude of the primary
V2: 6.05 Magnitude of the secondary
Equinox: Equinox
Date: 2006 Date of last observation
Orbit grade: 4 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
8 = Interferometric
9 = Astrometric
Flags: n Flags
Ephemerides: Ephemerides
Code: PkO2017b Reference

Double Star Orbit for STF 2758 AB



WDS 6th Orbit including measures of STF 2758 AB

-- Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements) --


Legend:
Green plus signs:Visual (micrometric) measures
Violet asterisks:Photographic measures
Blue symbols:Various interferometric techniques
Dot-dash line:Indicates the line of nodes

Ephemeris of STF 2758 AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.72   32.075   154.23
--------------------------
1692.00   11.059   324.64
1693.00   11.181   326.02
1694.00   11.303   327.38
1695.00   11.426   328.70
1696.00   11.548   329.99
1697.00   11.669   331.26
1698.00   11.790   332.51
1699.00   11.909   333.72
1700.00   12.027   334.92
1701.00   12.143   336.09
1702.00   12.258   337.24
1703.00   12.371   338.36
1704.00   12.481   339.47
1705.00   12.589   340.56
1706.00   12.695   341.63
1707.00   12.797   342.68
1708.00   12.898   343.72
1709.00   12.995   344.74
1710.00   13.089   345.74
1711.00   13.180   346.73
1712.00   13.268   347.71
1713.00   13.353   348.68
1714.00   13.434   349.63
1715.00   13.512   350.57
1716.00   13.587   351.50
1717.00   13.658   352.42
1718.00   13.726   353.34
1719.00   13.791   354.24
1720.00   13.852   355.13
1721.00   13.910   356.02
1722.00   13.964   356.90
1723.00   14.015   357.77
1724.00   14.063   358.64
1725.00   14.107   359.50
1726.00   14.149     0.36
1727.00   14.187     1.21
1728.00   14.222     2.06
1729.00   14.254     2.90
1730.00   14.283     3.74
1731.00   14.309     4.58
1732.00   14.332     5.41
1733.00   14.353     6.24
1734.00   14.370     7.07
1735.00   14.386     7.90
1736.00   14.399     8.72
1737.00   14.409     9.55
1738.00   14.417    10.37
1739.00   14.423    11.19
1740.00   14.427    12.02
1741.00   14.428    12.84
1742.00   14.428    13.66
1743.00   14.426    14.48
1744.00   14.422    15.30
1745.00   14.417    16.12
1746.00   14.410    16.95
1747.00   14.401    17.77
1748.00   14.392    18.59
1749.00   14.380    19.42
1750.00   14.368    20.25
1751.00   14.355    21.08
1752.00   14.341    21.91
1753.00   14.325    22.74
1754.00   14.309    23.57
1755.00   14.292    24.41
1756.00   14.275    25.25
1757.00   14.257    26.09
1758.00   14.239    26.93
1759.00   14.220    27.77
1760.00   14.201    28.62
1761.00   14.182    29.47
1762.00   14.163    30.32
1763.00   14.143    31.17
1764.00   14.124    32.03
1765.00   14.105    32.89
1766.00   14.086    33.75
1767.00   14.067    34.61
1768.00   14.048    35.48
1769.00   14.031    36.34
1770.00   14.013    37.21
1771.00   13.996    38.09
1772.00   13.980    38.96
1773.00   13.964    39.84
1774.00   13.949    40.71
1775.00   13.935    41.59
1776.00   13.922    42.47
1777.00   13.909    43.36
1778.00   13.898    44.24
1779.00   13.887    45.13
1780.00   13.878    46.01
1781.00   13.870    46.90
1782.00   13.863    47.79
1783.00   13.857    48.68
1784.00   13.852    49.57
1785.00   13.849    50.46
1786.00   13.847    51.36
1787.00   13.846    52.25
1788.00   13.846    53.14
1789.00   13.849    54.03
1790.00   13.852    54.92
1791.00   13.857    55.81
1792.00   13.864    56.70
1793.00   13.872    57.59
1794.00   13.881    58.48
1795.00   13.893    59.37
1796.00   13.905    60.25
1797.00   13.920    61.13
1798.00   13.936    62.02
1799.00   13.953    62.89
1800.00   13.973    63.77
1801.00   13.994    64.65
1802.00   14.016    65.52
1803.00   14.040    66.39
1804.00   14.066    67.25
1805.00   14.094    68.11
1806.00   14.123    68.97
1807.00   14.154    69.83
1808.00   14.187    70.68
1809.00   14.221    71.53
1810.00   14.257    72.37
1811.00   14.295    73.21
1812.00   14.334    74.04
1813.00   14.375    74.87
1814.00   14.417    75.70
1815.00   14.461    76.52
1816.00   14.507    77.33
1817.00   14.554    78.14
1818.00   14.603    78.95
1819.00   14.653    79.75
1820.00   14.705    80.54
1821.00   14.759    81.33
1822.00   14.814    82.11
1823.00   14.870    82.89
1824.00   14.928    83.66
1825.00   14.987    84.42
1826.00   15.048    85.18
1827.00   15.110    85.93
1828.00   15.173    86.68
1829.00   15.238    87.42
1830.00   15.304    88.15
1831.00   15.372    88.88
1832.00   15.440    89.60
1833.00   15.510    90.31
1834.00   15.582    91.02
1835.00   15.654    91.72
1836.00   15.728    92.41
1837.00   15.802    93.10
1838.00   15.878    93.78
1839.00   15.955    94.46
1840.00   16.033    95.13
1841.00   16.112    95.79
1842.00   16.192    96.44
1843.00   16.274    97.09
1844.00   16.356    97.73
1845.00   16.439    98.37
1846.00   16.523    99.00
1847.00   16.608    99.62
1848.00   16.693   100.24
1849.00   16.780   100.85
1850.00   16.867   101.45
1851.00   16.956   102.05
1852.00   17.045   102.64
1853.00   17.134   103.23
1854.00   17.225   103.81
1855.00   17.316   104.38
1856.00   17.408   104.95
1857.00   17.501   105.51
1858.00   17.594   106.06
1859.00   17.688   106.61
1860.00   17.782   107.16
1861.00   17.877   107.69
1862.00   17.973   108.23
1863.00   18.069   108.75
1864.00   18.165   109.27
1865.00   18.262   109.79
1866.00   18.360   110.30
1867.00   18.458   110.80
1868.00   18.556   111.30
1869.00   18.655   111.80
1870.00   18.754   112.29
1871.00   18.854   112.77
1872.00   18.954   113.25
1873.00   19.054   113.72
1874.00   19.155   114.19
1875.00   19.256   114.65
1876.00   19.357   115.11
1877.00   19.458   115.57
1878.00   19.560   116.01
1879.00   19.662   116.46
1880.00   19.764   116.90
1881.00   19.866   117.33
1882.00   19.969   117.77
1883.00   20.072   118.19
1884.00   20.174   118.61
1885.00   20.277   119.03
1886.00   20.381   119.45
1887.00   20.484   119.86
1888.00   20.587   120.26
1889.00   20.690   120.66
1890.00   20.794   121.06
1891.00   20.897   121.45
1892.00   21.001   121.84
1893.00   21.105   122.23
1894.00   21.208   122.61
1895.00   21.312   122.99
1896.00   21.416   123.36
1897.00   21.519   123.73
1898.00   21.623   124.10
1899.00   21.726   124.47
1900.00   21.830   124.83
1901.00   21.933   125.18
1902.00   22.036   125.54
1903.00   22.140   125.89
1904.00   22.243   126.23
1905.00   22.346   126.58
1906.00   22.449   126.92
1907.00   22.552   127.26
1908.00   22.654   127.59
1909.00   22.757   127.92
1910.00   22.859   128.25
1911.00   22.961   128.58
1912.00   23.063   128.90
1913.00   23.165   129.22
1914.00   23.267   129.54
1915.00   23.368   129.85
1916.00   23.470   130.16
1917.00   23.571   130.47
1918.00   23.672   130.78
1919.00   23.772   131.08
1920.00   23.873   131.38
1921.00   23.973   131.68
1922.00   24.073   131.98
1923.00   24.172   132.27
1924.00   24.272   132.56
1925.00   24.371   132.85
1926.00   24.469   133.14
1927.00   24.568   133.42
1928.00   24.666   133.71
1929.00   24.764   133.99
1930.00   24.862   134.26
1931.00   24.959   134.54
1932.00   25.056   134.81
1933.00   25.152   135.08
1934.00   25.249   135.35
1935.00   25.345   135.62
1936.00   25.440   135.89
1937.00   25.535   136.15
1938.00   25.630   136.41
1939.00   25.725   136.67
1940.00   25.819   136.93
1941.00   25.913   137.18
1942.00   26.006   137.44
1943.00   26.099   137.69
1944.00   26.192   137.94
1945.00   26.284   138.19
1946.00   26.376   138.43
1947.00   26.467   138.68
1948.00   26.559   138.92
1949.00   26.649   139.16
1950.00   26.739   139.40
1951.00   26.829   139.64
1952.00   26.918   139.88
1953.00   27.007   140.11
1954.00   27.096   140.35
1955.00   27.184   140.58
1956.00   27.272   140.81
1957.00   27.359   141.04
1958.00   27.445   141.27
1959.00   27.532   141.49
1960.00   27.617   141.72
1961.00   27.703   141.94
1962.00   27.788   142.16
1963.00   27.872   142.38
1964.00   27.956   142.60
1965.00   28.039   142.82
1966.00   28.122   143.04
1967.00   28.205   143.25
1968.00   28.287   143.47
1969.00   28.368   143.68
1970.00   28.449   143.89
1971.00   28.529   144.10
1972.00   28.609   144.31
1973.00   28.689   144.52
1974.00   28.768   144.73
1975.00   28.846   144.93
1976.00   28.924   145.14
1977.00   29.001   145.34
1978.00   29.078   145.55
1979.00   29.154   145.75
1980.00   29.230   145.95
1981.00   29.305   146.15
1982.00   29.380   146.35
1983.00   29.454   146.54
1984.00   29.528   146.74
1985.00   29.601   146.94
1986.00   29.673   147.13
1987.00   29.745   147.32
1988.00   29.817   147.52
1989.00   29.887   147.71
1990.00   29.958   147.90
1991.00   30.027   148.09
1992.00   30.096   148.28
1993.00   30.165   148.47
1994.00   30.233   148.65
1995.00   30.300   148.84
1996.00   30.367   149.03
1997.00   30.433   149.21
1998.00   30.499   149.40
1999.00   30.564   149.58
2000.00   30.629   149.76
2001.00   30.692   149.94
2002.00   30.756   150.13
2003.00   30.818   150.31
2004.00   30.880   150.49
2005.00   30.942   150.66
2006.00   31.003   150.84
2007.00   31.063   151.02
2008.00   31.123   151.20
2009.00   31.182   151.37
2010.00   31.240   151.55
2011.00   31.298   151.72
2012.00   31.355   151.90
2013.00   31.411   152.07
2014.00   31.467   152.24
2015.00   31.523   152.42
2016.00   31.577   152.59
2017.00   31.631   152.76
2018.00   31.684   152.93
2019.00   31.737   153.10
2020.00   31.789   153.27
2021.00   31.841   153.44
2022.00   31.891   153.61
2023.00   31.942   153.77
2024.00   31.991   153.94
2025.00   32.040   154.11
2026.00   32.088   154.28
2027.00   32.136   154.44
2028.00   32.182   154.61
2029.00   32.229   154.77
2030.00   32.274   154.94
2031.00   32.319   155.10
2032.00   32.363   155.26
2033.00   32.407   155.43
2034.00   32.450   155.59
2035.00   32.492   155.75
2036.00   32.533   155.91
2037.00   32.574   156.07
2038.00   32.614   156.23
2039.00   32.653   156.39
2040.00   32.692   156.56
2041.00   32.730   156.71
2042.00   32.768   156.87
2043.00   32.804   157.03
2044.00   32.840   157.19
2045.00   32.875   157.35
2046.00   32.910   157.51
2047.00   32.944   157.67
2048.00   32.977   157.82
2049.00   33.009   157.98
2050.00   33.041   158.14
2051.00   33.072   158.29
2052.00   33.102   158.45
2053.00   33.132   158.61
2054.00   33.161   158.76
2055.00   33.189   158.92
2056.00   33.216   159.07
2057.00   33.243   159.23
2058.00   33.269   159.38
2059.00   33.294   159.54
2060.00   33.318   159.69
2061.00   33.342   159.84
2062.00   33.365   160.00
2063.00   33.387   160.15
2064.00   33.409   160.30
2065.00   33.430   160.46
2066.00   33.450   160.61
2067.00   33.469   160.76
2068.00   33.487   160.92
2069.00   33.505   161.07
2070.00   33.522   161.22
2071.00   33.538   161.37
2072.00   33.554   161.52
2073.00   33.568   161.68
2074.00   33.582   161.83
2075.00   33.596   161.98
2076.00   33.608   162.13
2077.00   33.620   162.28
2078.00   33.630   162.43
2079.00   33.640   162.58
2080.00   33.650   162.73
2081.00   33.658   162.89
2082.00   33.666   163.04
2083.00   33.673   163.19
2084.00   33.679   163.34
2085.00   33.684   163.49
2086.00   33.689   163.64
2087.00   33.693   163.79
2088.00   33.695   163.94
2089.00   33.698   164.09
2090.00   33.699   164.24
2091.00   33.699   164.39
2092.00   33.699   164.54
2093.00   33.698   164.69
2094.00   33.696   164.84
2095.00   33.693   164.99
2096.00   33.690   165.15
2097.00   33.685   165.30
2098.00   33.680   165.45
2099.00   33.674   165.60
2100.00   33.667   165.75
2101.00   33.660   165.90
2102.00   33.651   166.05
2103.00   33.642   166.20
2104.00   33.631   166.35
2105.00   33.620   166.50
2106.00   33.608   166.65
2107.00   33.596   166.81
2108.00   33.582   166.96
2109.00   33.568   167.11
2110.00   33.552   167.26
2111.00   33.536   167.41
2112.00   33.519   167.57
2113.00   33.501   167.72
2114.00   33.482   167.87
2115.00   33.463   168.02
2116.00   33.442   168.18
2117.00   33.421   168.33
2118.00   33.398   168.48
2119.00   33.375   168.63
2120.00   33.351   168.79
2121.00   33.326   168.94
2122.00   33.300   169.10
2123.00   33.274   169.25
2124.00   33.246   169.41
2125.00   33.217   169.56
2126.00   33.188   169.71
2127.00   33.158   169.87
2128.00   33.126   170.03
2129.00   33.094   170.18
2130.00   33.061   170.34
2131.00   33.027   170.49
2132.00   32.992   170.65
2133.00   32.956   170.81
2134.00   32.920   170.97
2135.00   32.882   171.12
2136.00   32.843   171.28
2137.00   32.804   171.44
2138.00   32.763   171.60
2139.00   32.722   171.76
2140.00   32.680   171.92
2141.00   32.636   172.08
2142.00   32.592   172.24
2143.00   32.547   172.40
2144.00   32.501   172.56
2145.00   32.453   172.73
2146.00   32.405   172.89
2147.00   32.356   173.05
2148.00   32.306   173.21
2149.00   32.255   173.38
2150.00   32.203   173.54
2151.00   32.150   173.71
2152.00   32.096   173.87
2153.00   32.041   174.04
2154.00   31.985   174.21
2155.00   31.929   174.37
2156.00   31.871   174.54
2157.00   31.812   174.71
2158.00   31.752   174.88
2159.00   31.691   175.05
2160.00   31.629   175.22
2161.00   31.566   175.39
2162.00   31.502   175.56
2163.00   31.437   175.74
2164.00   31.371   175.91
2165.00   31.304   176.08
2166.00   31.236   176.26
2167.00   31.167   176.43
2168.00   31.097   176.61
2169.00   31.026   176.79
2170.00   30.954   176.97
2171.00   30.881   177.15
2172.00   30.806   177.33
2173.00   30.731   177.51
2174.00   30.655   177.69
2175.00   30.577   177.87
2176.00   30.499   178.05
2177.00   30.419   178.24
2178.00   30.339   178.42
2179.00   30.257   178.61
2180.00   30.174   178.80
2181.00   30.090   178.98
2182.00   30.005   179.17
2183.00   29.919   179.36
2184.00   29.832   179.56
2185.00   29.744   179.75
2186.00   29.655   179.94
2187.00   29.564   180.14
2188.00   29.473   180.33
2189.00   29.380   180.53
2190.00   29.287   180.73
2191.00   29.192   180.93
2192.00   29.096   181.13
2193.00   28.999   181.33
2194.00   28.901   181.54
2195.00   28.801   181.74
2196.00   28.701   181.95
2197.00   28.599   182.16
2198.00   28.497   182.37
2199.00   28.393   182.58
2200.00   28.288   182.79
2201.00   28.182   183.01
2202.00   28.075   183.22
2203.00   27.966   183.44
2204.00   27.857   183.66
2205.00   27.746   183.88
2206.00   27.634   184.10
2207.00   27.521   184.33
2208.00   27.407   184.56
2209.00   27.291   184.78
2210.00   27.175   185.01
2211.00   27.057   185.25
2212.00   26.938   185.48
2213.00   26.818   185.72
2214.00   26.697   185.96
2215.00   26.575   186.20
2216.00   26.451   186.44
2217.00   26.326   186.69
2218.00   26.200   186.93
2219.00   26.073   187.18
2220.00   25.945   187.44
2221.00   25.815   187.69
2222.00   25.685   187.95
2223.00   25.553   188.21
2224.00   25.420   188.47
2225.00   25.286   188.74
2226.00   25.150   189.01
2227.00   25.013   189.28
2228.00   24.876   189.56
2229.00   24.736   189.83
2230.00   24.596   190.11
2231.00   24.455   190.40
2232.00   24.312   190.69
2233.00   24.168   190.98
2234.00   24.023   191.27
2235.00   23.877   191.57
2236.00   23.730   191.87
2237.00   23.581   192.18
2238.00   23.431   192.49
2239.00   23.280   192.80
2240.00   23.128   193.12
2241.00   22.975   193.44
2242.00   22.820   193.76
2243.00   22.665   194.10
2244.00   22.508   194.43
2245.00   22.350   194.77
2246.00   22.191   195.12
2247.00   22.031   195.46
2248.00   21.869   195.82
2249.00   21.707   196.18
2250.00   21.543   196.55
2251.00   21.378   196.92
2252.00   21.212   197.29
2253.00   21.045   197.68
2254.00   20.877   198.07
2255.00   20.708   198.46
2256.00   20.538   198.86
2257.00   20.367   199.27
2258.00   20.194   199.69
2259.00   20.021   200.11
2260.00   19.847   200.54
2261.00   19.672   200.98
2262.00   19.495   201.42
2263.00   19.318   201.88
2264.00   19.140   202.34
2265.00   18.961   202.81
2266.00   18.781   203.29
2267.00   18.600   203.78
2268.00   18.419   204.28
2269.00   18.236   204.79
2270.00   18.053   205.31
2271.00   17.869   205.84
2272.00   17.685   206.38
2273.00   17.500   206.93
2274.00   17.314   207.50
2275.00   17.127   208.07
2276.00   16.940   208.66
2277.00   16.753   209.26
2278.00   16.565   209.88
2279.00   16.377   210.51
2280.00   16.188   211.16
2281.00   15.999   211.82
2282.00   15.810   212.49
2283.00   15.621   213.18
2284.00   15.432   213.89
2285.00   15.243   214.62
2286.00   15.053   215.36
2287.00   14.864   216.13
2288.00   14.675   216.91
2289.00   14.487   217.72
2290.00   14.299   218.54
2291.00   14.112   219.39
2292.00   13.925   220.26
2293.00   13.739   221.15
2294.00   13.554   222.07
2295.00   13.369   223.01
2296.00   13.186   223.98
2297.00   13.005   224.98
2298.00   12.825   226.01
2299.00   12.646   227.06
2300.00   12.469   228.15
2301.00   12.295   229.26
2302.00   12.122   230.41
2303.00   11.952   231.59
2304.00   11.784   232.80
2305.00   11.619   234.05
2306.00   11.457   235.33
2307.00   11.298   236.66
2308.00   11.143   238.01
2309.00   10.991   239.41
2310.00   10.843   240.84
2311.00   10.700   242.32
2312.00   10.561   243.83
2313.00   10.426   245.38
2314.00   10.297   246.98
2315.00   10.173   248.61
2316.00   10.054   250.28
2317.00    9.942   251.99
2318.00    9.835   253.74
2319.00    9.735   255.53
2320.00    9.642   257.35
2321.00    9.555   259.20
2322.00    9.476   261.09
2323.00    9.404   263.01
2324.00    9.340   264.96
2325.00    9.283   266.93
2326.00    9.234   268.92
2327.00    9.194   270.94
2328.00    9.161   272.97
2329.00    9.137   275.01
2330.00    9.121   277.06
2331.00    9.113   279.12
2332.00    9.113   281.18
2333.00    9.122   283.24
2334.00    9.139   285.29
2335.00    9.163   287.33
2336.00    9.196   289.36
2337.00    9.236   291.37
2338.00    9.283   293.37
2339.00    9.337   295.34
2340.00    9.398   297.29
2341.00    9.466   299.21
2342.00    9.540   301.10
2343.00    9.619   302.97
2344.00    9.704   304.80
2345.00    9.794   306.60
2346.00    9.889   308.36
2347.00    9.988   310.09
2348.00   10.091   311.79
2349.00   10.198   313.45
2350.00   10.308   315.08
2351.00   10.421   316.67
2352.00   10.536   318.22
2353.00   10.653   319.75
2354.00   10.772   321.24
2355.00   10.892   322.70
2356.00   11.014   324.12
2357.00   11.136   325.51
2358.00   11.258   326.88


Parsed GAIA Input Data
Click to expand/collapse the Gaia Input Data:
Star A - gaiadr3.gaia_source
solution_id = 1636148068921376768
designation = Gaia DR3 1872046609345556480
source_id = 1872046609345556480
random_index = 1349970107
ref_epoch = 2016.0
ra = 316.7484792940004
ra_error = 0.03876041
dec = 38.76386244649797
dec_error = 0.048496146
parallax = 285.99494829578117
parallax_error = 0.05989728
parallax_over_error = 4774.757
pm = 5282.104
pmra = 4164.2086922846665
pmra_error = 0.055289943
pmdec = 3249.613883848584
pmdec_error = 0.055022996
ra_dec_corr = -0.07811369
ra_parallax_corr = -0.15578008
ra_pmra_corr = 0.12697393
ra_pmdec_corr = -0.07891878
dec_parallax_corr = 0.21579508
dec_pmra_corr = -0.18858151
dec_pmdec_corr = -0.33916456
parallax_pmra_corr = -0.35355747
parallax_pmdec_corr = 0.041781005
pmra_pmdec_corr = 0.0030485608
astrometric_n_obs_al = 370
astrometric_n_obs_ac = 370
astrometric_n_good_obs_al = 359
astrometric_n_bad_obs_al = 11
astrometric_gof_al = 5.284108
astrometric_chi2_al = 14464.931
astrometric_excess_noise = 0.5273935
astrometric_excess_noise_sig = 438.7525
astrometric_params_solved = 95
astrometric_primary_flag = false
pseudocolour = 1.3887438
pseudocolour_error = 0.011957973
ra_pseudocolour_corr = -0.06257312
dec_pseudocolour_corr = -0.07292316
parallax_pseudocolour_corr = -0.016104285
pmra_pseudocolour_corr = 0.057393935
pmdec_pseudocolour_corr = -0.024043871
astrometric_matched_transits = 42
visibility_periods_used = 24
astrometric_sigma5d_max = 0.08044356
matched_transits = 43
new_matched_transits = 43
matched_transits_removed = 0
ipd_gof_harmonic_amplitude = 0.02393919
ipd_gof_harmonic_phase = 158.17163
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 1.2043179
duplicated_source = false
phot_g_n_obs = 346
phot_g_mean_flux = 233486358.93071273
phot_g_mean_flux_error = 135098.36
phot_g_mean_flux_over_error = 1728.2694
phot_g_mean_mag = 4.766713
phot_bp_n_obs = 42
phot_bp_mean_flux = 91096125.98035802
phot_bp_mean_flux_error = 62825.805
phot_bp_mean_flux_over_error = 1449.9795
phot_bp_mean_mag = 5.4397926
phot_rp_n_obs = 39
phot_rp_mean_flux = 203365379.9044591
phot_rp_mean_flux_error = 535376.3
phot_rp_mean_flux_over_error = 379.855
phot_rp_mean_mag = 3.977203
phot_bp_rp_excess_factor = 1.2611508
phot_bp_n_contaminated_transits = 0
phot_bp_n_blended_transits = 0
phot_rp_n_contaminated_transits = 0
phot_rp_n_blended_transits = 0
phot_proc_mode = 0
bp_rp = 1.4625897
bp_g = 0.6730795
g_rp = 0.78951025
radial_velocity = -65.97495
radial_velocity_error = 0.11701901
rv_method_used = 1
rv_nb_transits = 23
rv_nb_deblended_transits = 0
rv_visibility_periods_used = 17
rv_expected_sig_to_noise = 1838.569
rv_chisq_pvalue = 0.8792187
rv_time_duration = 918.7848
rv_amplitude_robust = 0.4289093
rv_template_teff = 4500.0
rv_template_logg = 4.5
rv_template_fe_h = -0.25
rv_atm_param_origin = 222
vbroad = 5.7024636
vbroad_error = 0.64723754
vbroad_nb_transits = 23
grvs_mag = 3.7045727
grvs_mag_error = 0.004880775
grvs_mag_nb_transits = 23
phot_variable_flag = NOT_AVAILABLE
l = 82.34297369475966
b = -5.822177113164248
ecl_lon = 336.9943235401776
ecl_lat = 51.90314564772732
in_qso_candidates = false
in_galaxy_candidates = false
non_single_star = 0
has_xp_continuous = true
has_xp_sampled = true
has_rvs = false
has_epoch_photometry = false
has_epoch_rv = false
has_mcmc_gspphot = true
has_mcmc_msc = false
in_andromeda_survey = false
classprob_dsc_combmod_quasar = 1.0816591e-13
classprob_dsc_combmod_galaxy = 5.402833e-13
classprob_dsc_combmod_star = 0.99939185
teff_gspphot = 4353.7437
teff_gspphot_lower = 4349.8877
teff_gspphot_upper = 4367.35
logg_gspphot = 4.6322
logg_gspphot_lower = 4.6255
logg_gspphot_upper = 4.6499
mh_gspphot = 0.2244
mh_gspphot_lower = 0.2049
mh_gspphot_upper = 0.301
distance_gspphot = 3.4904
distance_gspphot_lower = 3.4792
distance_gspphot_upper = 3.4946
azero_gspphot = 0.0
azero_gspphot_lower = 0.0
azero_gspphot_upper = 0.0003
ag_gspphot = 0.0
ag_gspphot_lower = 0.0
ag_gspphot_upper = 0.0002
ebpminrp_gspphot = 0.0
ebpminrp_gspphot_lower = 0.0
ebpminrp_gspphot_upper = 0.0001
libname_gspphot = MARCS
    Star B - gaiadr3.gaia_source
solution_id = 1636148068921376768
designation = Gaia DR3 1872046574983497216
source_id = 1872046574983497216
random_index = 284883588
ref_epoch = 2016.0
ra = 316.753662752556
ra_error = 0.018972972
dec = 38.75607277205679
dec_error = 0.023165297
parallax = 286.0053518616485
parallax_error = 0.028940246
parallax_over_error = 9882.616
pm = 5178.7075
pmra = 4105.976428209489
pmra_error = 0.025807729
pmdec = 3155.9416398273515
pmdec_error = 0.026797226
ra_dec_corr = -0.20874399
ra_parallax_corr = -0.073486045
ra_pmra_corr = 0.0076810145
ra_pmdec_corr = 0.065097794
dec_parallax_corr = 0.20372963
dec_pmra_corr = 0.017286308
dec_pmdec_corr = -0.25082797
parallax_pmra_corr = -0.18920778
parallax_pmdec_corr = -0.04841115
pmra_pmdec_corr = -0.16329253
astrometric_n_obs_al = 399
astrometric_n_obs_ac = 399
astrometric_n_good_obs_al = 384
astrometric_n_bad_obs_al = 15
astrometric_gof_al = -1.0525525
astrometric_chi2_al = 3721.4192
astrometric_excess_noise = 0.2566724
astrometric_excess_noise_sig = 104.4348
astrometric_params_solved = 31
astrometric_primary_flag = true
nu_eff_used_in_astrometry = 1.3869764
astrometric_matched_transits = 45
visibility_periods_used = 25
astrometric_sigma5d_max = 0.039712988
matched_transits = 46
new_matched_transits = 17
matched_transits_removed = 20
ipd_gof_harmonic_amplitude = 0.028972903
ipd_gof_harmonic_phase = 145.26941
ipd_frac_multi_peak = 1
ipd_frac_odd_win = 0
ruwe = 0.9611461
duplicated_source = false
phot_g_n_obs = 388
phot_g_mean_flux = 124362339.74364884
phot_g_mean_flux_error = 50684.63
phot_g_mean_flux_over_error = 2453.65
phot_g_mean_mag = 5.4506445
phot_bp_n_obs = 45
phot_bp_mean_flux = 42317074.91270489
phot_bp_mean_flux_error = 25084.328
phot_bp_mean_flux_over_error = 1686.9926
phot_bp_mean_mag = 6.272253
phot_rp_n_obs = 42
phot_rp_mean_flux = 119232085.18764849
phot_rp_mean_flux_error = 255851.67
phot_rp_mean_flux_over_error = 466.02036
phot_rp_mean_mag = 4.5569124
phot_bp_rp_excess_factor = 1.2990199
phot_bp_n_contaminated_transits = 0
phot_bp_n_blended_transits = 0
phot_rp_n_contaminated_transits = 0
phot_rp_n_blended_transits = 0
phot_proc_mode = 0
bp_rp = 1.7153406
bp_g = 0.82160854
g_rp = 0.8937321
radial_velocity = -64.593544
radial_velocity_error = 0.118319444
rv_method_used = 1
rv_nb_transits = 28
rv_nb_deblended_transits = 0
rv_visibility_periods_used = 21
rv_expected_sig_to_noise = 1614.4446
rv_chisq_pvalue = 0.48390895
rv_time_duration = 894.11554
rv_amplitude_robust = 0.5368805
rv_template_teff = 4000.0
rv_template_logg = 4.5
rv_template_fe_h = -0.25
rv_atm_param_origin = 222
vbroad = 6.9816794
vbroad_error = 0.4493172
vbroad_nb_transits = 28
grvs_mag = 4.212575
grvs_mag_error = 0.0058996035
grvs_mag_nb_transits = 28
rvs_spec_sig_to_noise = 1573.3376
phot_variable_flag = NOT_AVAILABLE
l = 82.3398800038688
b = -5.830395626717013
ecl_lon = 336.99417938965075
ecl_lat = 51.89437020758287
in_qso_candidates = false
in_galaxy_candidates = false
non_single_star = 0
has_xp_continuous = true
has_xp_sampled = true
has_rvs = true
has_epoch_photometry = false
has_epoch_rv = false
has_mcmc_gspphot = true
has_mcmc_msc = false
in_andromeda_survey = false
classprob_dsc_combmod_quasar = 1.160294e-13
classprob_dsc_combmod_galaxy = 5.7956103e-13
classprob_dsc_combmod_star = 0.99861324
teff_gspphot = 3889.6328
teff_gspphot_lower = 3866.8645
teff_gspphot_upper = 3916.285
logg_gspphot = 4.548
logg_gspphot_lower = 4.527
logg_gspphot_upper = 4.5613
mh_gspphot = -0.484
mh_gspphot_lower = -0.5502
mh_gspphot_upper = -0.4288
distance_gspphot = 3.4947
distance_gspphot_lower = 3.4857
distance_gspphot_upper = 3.4996
azero_gspphot = 0.0003
azero_gspphot_lower = 0.0001
azero_gspphot_upper = 0.0014
ag_gspphot = 0.0002
ag_gspphot_lower = 0.0
ag_gspphot_upper = 0.001
ebpminrp_gspphot = 0.0001
ebpminrp_gspphot_lower = 0.0
ebpminrp_gspphot_upper = 0.0006
libname_gspphot = PHOENIX
- gaiadr3.astrophysical_parameters
solution_id = 1636148068921376768
source_id = 1872046609345556480
classprob_dsc_combmod_quasar = 1.0816591e-13
classprob_dsc_combmod_galaxy = 5.402833e-13
classprob_dsc_combmod_star = 0.99939185
classprob_dsc_combmod_whitedwarf = 9.772629e-10
classprob_dsc_combmod_binarystar = 0.00060819567
classprob_dsc_specmod_quasar = 0.0
classprob_dsc_specmod_galaxy = 0.0
classprob_dsc_specmod_star = 0.9426286
classprob_dsc_specmod_whitedwarf = 4.5928614e-06
classprob_dsc_specmod_binarystar = 0.05736677
classprob_dsc_allosmod_quasar = 0.0
classprob_dsc_allosmod_galaxy = 0.0
classprob_dsc_allosmod_star = 1.0
teff_gspphot = 4353.7437
teff_gspphot_lower = 4349.8877
teff_gspphot_upper = 4367.35
logg_gspphot = 4.6322
logg_gspphot_lower = 4.6255
logg_gspphot_upper = 4.6499
mh_gspphot = 0.2244
mh_gspphot_lower = 0.2049
mh_gspphot_upper = 0.301
distance_gspphot = 3.4904
distance_gspphot_lower = 3.4792
distance_gspphot_upper = 3.4946
azero_gspphot = 0.0
azero_gspphot_lower = 0.0
azero_gspphot_upper = 0.0003
ag_gspphot = 0.0
ag_gspphot_lower = 0.0
ag_gspphot_upper = 0.0002
abp_gspphot = 0.0
abp_gspphot_lower = 0.0
abp_gspphot_upper = 0.0003
arp_gspphot = 0.0
arp_gspphot_lower = 0.0
arp_gspphot_upper = 0.0002
ebpminrp_gspphot = 0.0
ebpminrp_gspphot_lower = 0.0
ebpminrp_gspphot_upper = 0.0001
mg_gspphot = 7.0726
mg_gspphot_lower = 7.0695
mg_gspphot_upper = 7.0797
radius_gspphot = 0.676
radius_gspphot_lower = 0.6683
radius_gspphot_upper = 0.6783
logposterior_gspphot = -15513.487
mcmcaccept_gspphot = 0.30661443
libname_gspphot = MARCS
teff_gspspec = 4192.0
teff_gspspec_lower = 4191.0
teff_gspspec_upper = 4194.0
logg_gspspec = 4.58
logg_gspspec_lower = 4.57
logg_gspspec_upper = 4.59
mh_gspspec = -0.5
mh_gspspec_lower = -0.51
mh_gspspec_upper = -0.5
alphafe_gspspec = 0.2
alphafe_gspspec_lower = 0.2
alphafe_gspspec_upper = 0.2
fem_gspspec = 0.05
fem_gspspec_lower = 0.03
fem_gspspec_upper = 0.07
fem_gspspec_nlines = 8
fem_gspspec_linescatter = 0.16
sife_gspspec = 0.37
sife_gspspec_lower = 0.33
sife_gspspec_upper = 0.4
sife_gspspec_nlines = 1
sife_gspspec_linescatter = 0.0
cafe_gspspec = 0.2
cafe_gspspec_lower = 0.2
cafe_gspspec_upper = 0.21
cafe_gspspec_nlines = 7
cafe_gspspec_linescatter = 0.02
tife_gspspec = 0.11
tife_gspspec_lower = 0.1
tife_gspspec_upper = 0.13
tife_gspspec_nlines = 3
tife_gspspec_linescatter = 0.05
mgfe_gspspec = 0.64
mgfe_gspspec_lower = 0.6
mgfe_gspspec_upper = 0.7
mgfe_gspspec_nlines = 1
mgfe_gspspec_linescatter = 0.0
zrfe_gspspec = 1.39
zrfe_gspspec_lower = 1.25
zrfe_gspspec_upper = 1.45
zrfe_gspspec_nlines = 1
zrfe_gspspec_linescatter = 0.0
crfe_gspspec = 0.15
crfe_gspspec_lower = 0.1
crfe_gspspec_upper = 0.2
crfe_gspspec_nlines = 1
crfe_gspspec_linescatter = 0.0
cefe_gspspec = 0.82
cefe_gspspec_lower = 0.58
cefe_gspspec_upper = 0.88
cefe_gspspec_nlines = 1
cefe_gspspec_linescatter = 0.0
dib_gspspec_lambda = 861.8664
dib_gspspec_lambda_uncertainty = 0.0012332838
dibew_gspspec = 0.011
dibew_gspspec_uncertainty = 0.021
dibewnoise_gspspec_uncertainty = -1.0
dibp0_gspspec = -0.0179
dibp2_gspspec = 0.2513
dibp2_gspspec_uncertainty = 0.0253
dibqf_gspspec = 5
flags_gspspec = 00000000000009920009900001000999922229995
logchisq_gspspec = -4.1886578
ew_espels_halpha = 0.00014209124
ew_espels_halpha_uncertainty = 0.020498266
ew_espels_halpha_flag = 1
ew_espels_halpha_model = -0.153786
flags_esphs = 91
spectraltype_esphs = K
activityindex_espcs = 0.017618291
activityindex_espcs_uncertainty = 5.522338e-05
activityindex_espcs_input = M1
radius_flame = 0.68227917
radius_flame_lower = 0.6645065
radius_flame_upper = 0.70001566
lum_flame = 0.15068895
lum_flame_lower = 0.145659
lum_flame_upper = 0.1556939
mass_flame = 0.6795274
mass_flame_lower = 0.6395272
mass_flame_upper = 0.71952814
flags_flame = 00
evolstage_flame = 288
gravredshift_flame = 0.67734677
gravredshift_flame_lower = 0.66972476
gravredshift_flame_upper = 0.696055
bc_flame = -0.25403103
    - gaiadr3.astrophysical_parameters
solution_id = 1636148068921376768
source_id = 1872046574983497216
classprob_dsc_combmod_quasar = 1.160294e-13
classprob_dsc_combmod_galaxy = 5.7956103e-13
classprob_dsc_combmod_star = 0.99861324
classprob_dsc_combmod_whitedwarf = 2.2775145e-12
classprob_dsc_combmod_binarystar = 0.0013867696
classprob_dsc_specmod_quasar = 0.0
classprob_dsc_specmod_galaxy = 0.0
classprob_dsc_specmod_star = 0.87806064
classprob_dsc_specmod_whitedwarf = 0.0
classprob_dsc_specmod_binarystar = 0.121939324
classprob_dsc_allosmod_quasar = 0.0
classprob_dsc_allosmod_galaxy = 0.0
classprob_dsc_allosmod_star = 1.0
teff_gspphot = 3889.6328
teff_gspphot_lower = 3866.8645
teff_gspphot_upper = 3916.285
logg_gspphot = 4.548
logg_gspphot_lower = 4.527
logg_gspphot_upper = 4.5613
mh_gspphot = -0.484
mh_gspphot_lower = -0.5502
mh_gspphot_upper = -0.4288
distance_gspphot = 3.4947
distance_gspphot_lower = 3.4857
distance_gspphot_upper = 3.4996
azero_gspphot = 0.0003
azero_gspphot_lower = 0.0001
azero_gspphot_upper = 0.0014
ag_gspphot = 0.0002
ag_gspphot_lower = 0.0
ag_gspphot_upper = 0.001
abp_gspphot = 0.0003
abp_gspphot_lower = 0.0
abp_gspphot_upper = 0.0013
arp_gspphot = 0.0002
arp_gspphot_lower = 0.0
arp_gspphot_upper = 0.0008
ebpminrp_gspphot = 0.0001
ebpminrp_gspphot_lower = 0.0
ebpminrp_gspphot_upper = 0.0006
mg_gspphot = 7.7663
mg_gspphot_lower = 7.7519
mg_gspphot_upper = 7.7704
radius_gspphot = 0.6636
radius_gspphot_lower = 0.6566
radius_gspphot_upper = 0.6721
logposterior_gspphot = -23646.594
mcmcaccept_gspphot = 0.32742947
libname_gspphot = PHOENIX
teff_gspspec = 3920.0
teff_gspspec_lower = 3899.0
teff_gspspec_upper = 3922.0
logg_gspspec = 4.89
logg_gspspec_lower = 4.88
logg_gspspec_upper = 4.94
mh_gspspec = -0.52
mh_gspspec_lower = -0.52
mh_gspspec_upper = -0.47
alphafe_gspspec = 0.2
alphafe_gspspec_lower = 0.2
alphafe_gspspec_upper = 0.21
fem_gspspec = 0.06
fem_gspspec_lower = 0.04
fem_gspspec_upper = 0.08
fem_gspspec_nlines = 7
fem_gspspec_linescatter = 0.16
cafe_gspspec = 0.16
cafe_gspspec_lower = 0.16
cafe_gspspec_upper = 0.17
cafe_gspspec_nlines = 7
cafe_gspspec_linescatter = 0.04
dib_gspspec_lambda = 862.4337
dib_gspspec_lambda_uncertainty = 0.032814052
dibew_gspspec = 0.009
dibew_gspspec_uncertainty = 0.003
dibewnoise_gspspec_uncertainty = -1.0
dibp0_gspspec = -0.0035
dibp2_gspspec = 1.0485
dibp2_gspspec_uncertainty = 0.5181
dibqf_gspspec = 4
flags_gspspec = 00000001000009999999900999900999999999994
logchisq_gspspec = -3.8941996
ew_espels_halpha = 0.058830716
ew_espels_halpha_uncertainty = 0.017945804
ew_espels_halpha_flag = 1
ew_espels_halpha_model = -0.359054
flags_esphs = 92
spectraltype_esphs = K
activityindex_espcs = 0.016738644
activityindex_espcs_uncertainty = 5.3225136e-05
activityindex_espcs_input = M1
radius_flame = 0.6768412
radius_flame_lower = 0.6543431
radius_flame_upper = 0.6993246
lum_flame = 0.09445296
lum_flame_lower = 0.08943758
lum_flame_upper = 0.09946323
flags_flame = 20
evolstage_flame = 345
gravredshift_flame = 0.5544735
gravredshift_flame_lower = 0.53741086
gravredshift_flame_upper = 0.5609786
bc_flame = -0.4304826
neuron_oa_id = 202105281205440457
neuron_oa_dist = 7.241152e-06
neuron_oa_dist_percentile_rank = 75
flags_oa = 0012




Observation Date:


Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2026. Unless otherwise noted, all output generated by the Double Star Calculator including orbit diagrams, ephemerides, and analytical reports is licensed under CC BY 4.0.


Acknowledgements
The Double Star Calculator makes use of data from the European Space Agency (ESA) mission Gaia, processed by the Gaia Data Processing and Analysis Consortium (DPAC). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement. Additionally, it incorporates data from the Washington Double Star Catalog, maintained at the U.S. Naval Observatory, and makes use of the Aladin Sky Atlas developed at CDS, Strasbourg Observatory, France.


Report Information
Double Star Calculator: Version 1.2 ($Rev: 2591 $)
Report created: 2026-09-09 08:40:56 +0200



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