Double Star Calculator - Results


STF 1321 AB - Astrometric and kinematic properties
Gaia Source ID - Star A          : 1022456139210632064     Simbad
Gaia Source ID - Star B          : 1022456104850892928     Simbad
Observation Epoch : J2023.300 / 2023-04-21 Angular Separation : 16.984 ± 0.0002 arcsec Position Angle : 100.19 ± 0.0005 degree
Star A/B Epoch : J2016.000 / J2016.000 Angular Separation : 17.075 < 0.0001 arcsec Position Angle : 97.88 < 0.0001 degree Projected Separation : 108 au Spatial Separation : 117 ± 92 au Parallax Significance : 0.19 σ 3D Space Velocity Angle : 2.68 ± 0.07 degree ΔProper Motion Angle : 2.55 ± 0.00 degree ΔTotal Proper Motion : 58.65 ± 0.03 mas/yr ΔTangential Velocity : 1.76 ± 0.01 km/s ΔRadial Velocity : 1.33 ± 0.17 km/s ΔSpeed (scalar) : 2.01 ± 0.04 km/s ΔRelative Velocity (3D) : 3.14 ± 0.07 km/s

Aladin Lite Sky Atlas



Star A - Stellar Data
Gaia Source ID                   : 1022456139210632064           VizieR
Epoch : J2016.000 Right Ascension (RA) : 09h 14m 20.05s Declination (Dec) : 52° 41' 2.69" Distance : 6.33 ± 0.00 pc Distance : 20.66 ± 0.00 ly Magnitude (G-band) : 6.98 mag Absolute Magnitude : 7.97 ± <0.01 mag Stellar Extinction : 0.00 ± <0.01 mag Spectral Type (BP/RP) : M Bolometric correction : -3.11 mag Luminosity : 0.90 + 0.00 / − 0.00 L☉ Log(Luminosity) : -0.04699 Effective temperature (Teff) : 3745.38 +41.11 / -16.09 K Log(Teff) : 3.57350 Mass estimation : 0.52 M☉ RUWE : 1.08 Position Angle of Proper Motion : 249.79 ± 0.00 degree Total Proper Motion : 1647.20 ± 0.02 mas/yr Tangential Velocity : 49.46 ± 0.01 km/s Radial Velocity (Gaia) : 10.64 ± 0.12 km/s Space Velocity : 50.59 ± 0.03 km/s

Star A - Selected astrophysical parameters
DSC-Combmod binary star          :       0.00
DSC-Specmod binary star          :       0.26
Radius from GSP-Phot Aeneas      :       0.67  ±   0.01          R☉
Spectral type from ESP-ELS       :          K
Radius of the star from FLAME    :       0.68  ±   0.02          R☉
Bolometric correction            :      -0.50                    mag
Luminosity of the star (FLAME)   :       0.08  ±   0.01          L☉
FLAME quality indicators         :         20
  Quality                        :       Mass/Age not available
  Source                         :       Parallax used
Evolutionary stage from FLAME    :        260      Main Sequence (early)

Star A - Double Star Quality Metrics
Parallax over error :   8033.850 : very good
RUWE                :      1.080 : good astrometric fit (single star)
Non Single Star     :            : Single Star
Duplicated source   :      false : single source
G magnitude         :      6.976 : G > 3 mag, photometry reliable
Excess noise        :      0.127 : Good fit
  Significance      :     16.635 :   Minor noise, likely negligible
BP-RP excess factor :      1.312 : photometry inconsistent
Visibility periods  :         21 : high, indicates well observed star
IPD multi-peak frac :         0% : single peak detected
IDP GoF harmonic amp:      0.061 : unobtrusive (single star source)


Star B - Stellar Data
Gaia Source ID                   : 1022456104850892928           VizieR
Epoch : J2016.000 Right Ascension (RA) : 09h 14m 21.91s Declination (Dec) : 52° 41' 0.35" Distance : 6.33 ± 0.00 pc Distance : 20.66 ± 0.00 ly Magnitude (G-band) : 7.05 mag Absolute Magnitude : 8.05 ± <0.01 mag Stellar Extinction : N/A Spectral Type (BP/RP) : M Bolometric correction : -3.11 mag Luminosity : 0.83 + 0.00 / − 0.00 L☉ Log(Luminosity) : -0.07845 Teff (bp_rp) : 3300.00 K Log(Teff) : 3.51851 Mass estimation : 0.50 M☉ RUWE : 1.12 Position Angle of Proper Motion : 247.24 ± 0.00 degree Total Proper Motion : 1705.85 ± 0.02 mas/yr Tangential Velocity : 51.22 ± 0.01 km/s Radial Velocity (Gaia) : 11.97 ± 0.12 km/s Space Velocity : 52.60 ± 0.03 km/s

Star B - Selected astrophysical parameters
DSC-Combmod binary star          :       0.00
DSC-Specmod binary star          :       0.26
Spectral type from ESP-ELS       :          K

Star B - Double Star Quality Metrics
Parallax over error :   7470.174 : very good
RUWE                :      1.120 : good astrometric fit (single star)
Non Single Star     :            : Single Star
Duplicated source   :      false : single source
G magnitude         :      7.054 : G > 3 mag, photometry reliable
Excess noise        :      0.139 : Good fit
  Significance      :     18.680 :   Minor noise, likely negligible
BP-RP excess factor :      1.317 : photometry inconsistent
Visibility periods  :         22 : high, indicates well observed star
IPD multi-peak frac :         0% : single peak detected
IDP GoF harmonic amp:      0.062 : 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)          :        0.06     (CPM)

Co-Moving

UWLE for Co-Moving Pairs (3D)      :
===================================
COMOV: Velocity Evidence Indicator :        0.67     (Moderate)
COMOV: Distance Evidence Indicator :        1.00     (Strong)
Co-Moving Total Evidence Indicator :        0.82     (Strong)

rPM/COMOV Agreement                :                 (High)

Binarity

Separation, Sigma and Reliability  :
===================================
Projected Separation               :         108     au
Spatial Separation                 :         117  ±       92  au
  1-Sigma Range                    : [       108,        209] au
  Significance                     :        0.19     σ
  Note: 3D distance not significantly resolved

3D spatial distance probabilities : =================================== P(D-3D <= 183 au) : 56.4 % (D-critical) P(D-3D <= 216 au) : 74.0 % (2.0 * D-projected) 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)          :        0.06     (CPM)
ΔRelative Velocity (3D)            :        3.14  ±  0.07   km/s

UWLE for Wide Binaries (3D)        :
===================================
WBS: Velocity Evidence Indicator   :        0.77     (Strong)
WBS: Distance Evidence Indicator   :        1.00     (Strong)
Binarity Total Evidence Indicator  :        0.88     (Strong)

Orbital & Binding Dynamics         :
-----------------------------------
Est. orbital period at 3D Sep.     :     1087.50            years
Escape Velocity                    :        3.93            km/s (Bound)
3D Velocity Difference             :        3.14  ±  0.07   km/s
Circular Orbital Velocity          :        2.78            km/s
Binding Indicator η                :        0.64     (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   :        0.78     (Strong)
WBS: Distance Evidence Indicator   :        1.00     (Strong)
Binarity Total Evidence Indicator  :        0.89     (Strong)

Orbital & Binding Dynamics         :
-----------------------------------
Est. orbital period at lower bound :      964.70            years
Escape Velocity                    :        4.09            km/s (Bound)
3D Velocity Difference             :        3.14  ±  0.07   km/s
Circular Orbital Velocity          :        2.89            km/s
Binding Indicator η                :        0.59     (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 : 0.78 (Strong) TBS: Distance Evidence Indicator : 0.99 (Strong) Binarity Total Evidence Indicator : 0.88 (Strong) Orbital & Binding Dynamics : ----------------------------------- Est. orbital period at lower bound : 964.70 years Escape Velocity : 4.09 km/s (Bound) 3D Velocity Difference : 3.14 ± 0.07 km/s Circular Orbital Velocity : 2.89 km/s Binding Indicator η : 0.59 (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

RUWE parameters
RUWE probability for a binary system (Star A) :  1.08 : Zero
RUWE probability for a binary system (Star B) :  1.12 : 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     21.673    0.003      67.775    0.006
1901.0     21.614    0.003      67.971    0.006
1902.0     21.554    0.003      68.168    0.006
1903.0     21.496    0.003      68.366    0.006
1904.0     21.437    0.003      68.565    0.006
1905.0     21.379    0.003      68.765    0.006
1906.0     21.321    0.003      68.966    0.006
1907.0     21.263    0.003      69.168    0.006
1908.0     21.205    0.003      69.371    0.006
1909.0     21.148    0.003      69.576    0.006
1910.0     21.091    0.003      69.782    0.006
1911.0     21.034    0.003      69.988    0.006
1912.0     20.978    0.003      70.196    0.006
1913.0     20.922    0.003      70.405    0.006
1914.0     20.866    0.003      70.615    0.006
1915.0     20.810    0.003      70.826    0.005
1916.0     20.755    0.003      71.038    0.005
1917.0     20.700    0.003      71.252    0.005
1918.0     20.645    0.002      71.466    0.005
1919.0     20.591    0.002      71.682    0.005
1920.0     20.536    0.002      71.899    0.005
1921.0     20.483    0.002      72.117    0.005
1922.0     20.429    0.002      72.336    0.005
1923.0     20.376    0.002      72.556    0.005
1924.0     20.323    0.002      72.778    0.005
1925.0     20.270    0.002      73.000    0.005
1926.0     20.218    0.002      73.224    0.005
1927.0     20.166    0.002      73.449    0.005
1928.0     20.114    0.002      73.675    0.005
1929.0     20.062    0.002      73.902    0.005
1930.0     20.011    0.002      74.131    0.005
1931.0     19.961    0.002      74.360    0.005
1932.0     19.910    0.002      74.591    0.005
1933.0     19.860    0.002      74.823    0.005
1934.0     19.810    0.002      75.056    0.005
1935.0     19.761    0.002      75.290    0.005
1936.0     19.712    0.002      75.526    0.005
1937.0     19.663    0.002      75.762    0.004
1938.0     19.614    0.002      76.000    0.004
1939.0     19.566    0.002      76.239    0.004
1940.0     19.518    0.002      76.479    0.004
1941.0     19.471    0.002      76.720    0.004
1942.0     19.424    0.002      76.963    0.004
1943.0     19.377    0.002      77.206    0.004
1944.0     19.331    0.002      77.451    0.004
1945.0     19.284    0.002      77.697    0.004
1946.0     19.239    0.002      77.944    0.004
1947.0     19.193    0.002      78.193    0.004
1948.0     19.148    0.002      78.442    0.004
1949.0     19.104    0.002      78.693    0.004
1950.0     19.060    0.002      78.945    0.004
1951.0     19.016    0.002      79.198    0.004
1952.0     18.972    0.002      79.452    0.004
1953.0     18.929    0.002      79.707    0.004
1954.0     18.886    0.002      79.964    0.004
1955.0     18.844    0.002      80.221    0.004
1956.0     18.802    0.002      80.480    0.003
1957.0     18.760    0.001      80.740    0.003
1958.0     18.719    0.001      81.001    0.003
1959.0     18.678    0.001      81.263    0.003
1960.0     18.638    0.001      81.527    0.003
1961.0     18.598    0.001      81.791    0.003
1962.0     18.558    0.001      82.057    0.003
1963.0     18.519    0.001      82.324    0.003
1964.0     18.480    0.001      82.592    0.003
1965.0     18.442    0.001      82.861    0.003
1966.0     18.404    0.001      83.131    0.003
1967.0     18.366    0.001      83.402    0.003
1968.0     18.329    0.001      83.675    0.003
1969.0     18.292    0.001      83.948    0.003
1970.0     18.256    0.001      84.223    0.003
1971.0     18.220    0.001      84.498    0.003
1972.0     18.184    0.001      84.775    0.003
1973.0     18.149    0.001      85.053    0.003
1974.0     18.114    0.001      85.332    0.003
1975.0     18.080    0.001      85.612    0.002
1976.0     18.046    0.001      85.893    0.002
1977.0     18.013    0.001      86.175    0.002
1978.0     17.980    0.001      86.458    0.002
1979.0     17.948    0.001      86.742    0.002
1980.0     17.916    0.001      87.027    0.002
1981.0     17.884    0.001      87.313    0.002
1982.0     17.853    0.001      87.601    0.002
1983.0     17.822    0.001      87.889    0.002
1984.0     17.792    0.001      88.178    0.002
1985.0     17.762    0.001      88.468    0.002
1986.0     17.733    0.001      88.759    0.002
1987.0     17.704    0.001      89.051    0.002
1988.0     17.675    0.001      89.344    0.002
1989.0     17.647    0.001      89.638    0.002
1990.0     17.620    0.001      89.933    0.002
1991.0     17.593    0.001      90.229    0.002
1992.0     17.566    0.001      90.526    0.001
1993.0     17.540    0.001      90.823    0.001
1994.0     17.515    0.001      91.122    0.001
1995.0     17.490    0.001      91.421    0.001
1996.0     17.465    0.001      91.721    0.001
1997.0     17.441    0.000      92.022    0.001
1998.0     17.417    0.000      92.324    0.001
1999.0     17.394    0.000      92.627    0.001
2000.0     17.371    0.000      92.930    0.001
2001.0     17.349    0.000      93.234    0.001
2002.0     17.327    0.000      93.539    0.001
2003.0     17.306    0.000      93.845    0.001
2004.0     17.285    0.000      94.152    0.001
2005.0     17.265    0.000      94.459    0.001
2006.0     17.245    0.000      94.767    0.001
2007.0     17.226    0.000      95.076    0.001
2008.0     17.207    0.000      95.385    0.001
2009.0     17.189    0.000      95.695    0.000
2010.0     17.171    0.000      96.006    0.000
2011.0     17.154    0.000      96.317    0.000
2012.0     17.137    0.000      96.629    0.000
2013.0     17.121    0.000      96.941    0.000
2014.0     17.105    0.000      97.255    0.000
2015.0     17.090    0.000      97.568    0.000
2016.0     17.075    0.000      97.882    0.000
2017.0     17.061    0.000      98.197    0.000
2018.0     17.047    0.000      98.512    0.000
2019.0     17.034    0.000      98.828    0.000
2020.0     17.022    0.000      99.144    0.000
2021.0     17.009    0.000      99.461    0.000
2022.0     16.998    0.000      99.778    0.000
2023.0     16.987    0.000     100.096    0.000
2024.0     16.976    0.000     100.414    0.001
2025.0     16.966    0.000     100.732    0.001
2026.0     16.957    0.000     101.051    0.001
2027.0     16.948    0.000     101.370    0.001
2028.0     16.939    0.000     101.689    0.001
2029.0     16.931    0.000     102.009    0.001
2030.0     16.924    0.000     102.329    0.001
2031.0     16.917    0.000     102.649    0.001
2032.0     16.911    0.000     102.970    0.001
2033.0     16.905    0.000     103.291    0.001
2034.0     16.900    0.000     103.611    0.001
2035.0     16.895    0.000     103.933    0.001
2036.0     16.891    0.001     104.254    0.001
2037.0     16.887    0.001     104.575    0.001
2038.0     16.884    0.001     104.897    0.001
2039.0     16.881    0.001     105.219    0.002
2040.0     16.879    0.001     105.541    0.002
2041.0     16.878    0.001     105.862    0.002
2042.0     16.877    0.001     106.184    0.002
2043.0     16.876    0.001     106.506    0.002
2044.0     16.876    0.001     106.828    0.002
2045.0     16.877    0.001     107.150    0.002
2046.0     16.878    0.001     107.472    0.002
2047.0     16.879    0.001     107.794    0.002
2048.0     16.882    0.001     108.116    0.002
2049.0     16.884    0.001     108.437    0.002
2050.0     16.887    0.001     108.759    0.002
2051.0     16.891    0.001     109.080    0.002
2052.0     16.895    0.001     109.402    0.002
2053.0     16.900    0.001     109.723    0.002
2054.0     16.906    0.001     110.044    0.003
2055.0     16.912    0.001     110.365    0.003
2056.0     16.918    0.001     110.685    0.003
2057.0     16.925    0.001     111.005    0.003
2058.0     16.932    0.001     111.325    0.003
2059.0     16.940    0.001     111.645    0.003
2060.0     16.949    0.001     111.964    0.003
2061.0     16.958    0.001     112.283    0.003
2062.0     16.968    0.001     112.602    0.003
2063.0     16.978    0.001     112.920    0.003
2064.0     16.988    0.001     113.238    0.003
2065.0     16.999    0.001     113.556    0.003
2066.0     17.011    0.001     113.873    0.003
2067.0     17.023    0.001     114.189    0.003
2068.0     17.036    0.001     114.506    0.004
2069.0     17.049    0.001     114.821    0.004
2070.0     17.063    0.001     115.137    0.004
2071.0     17.077    0.001     115.451    0.004
2072.0     17.092    0.001     115.765    0.004
2073.0     17.107    0.001     116.079    0.004
2074.0     17.123    0.001     116.392    0.004
2075.0     17.139    0.001     116.705    0.004
2076.0     17.156    0.002     117.016    0.004
2077.0     17.173    0.002     117.328    0.004
2078.0     17.191    0.002     117.638    0.004
2079.0     17.210    0.002     117.948    0.004
2080.0     17.228    0.002     118.257    0.004
2081.0     17.248    0.002     118.566    0.004
2082.0     17.268    0.002     118.874    0.005
2083.0     17.288    0.002     119.181    0.005
2084.0     17.309    0.002     119.487    0.005
2085.0     17.330    0.002     119.793    0.005
2086.0     17.352    0.002     120.098    0.005
2087.0     17.374    0.002     120.402    0.005
2088.0     17.397    0.002     120.706    0.005
2089.0     17.420    0.002     121.008    0.005
2090.0     17.444    0.002     121.310    0.005
2091.0     17.468    0.002     121.611    0.005
2092.0     17.493    0.002     121.911    0.005
2093.0     17.518    0.002     122.210    0.005
2094.0     17.544    0.002     122.509    0.005
2095.0     17.570    0.002     122.806    0.005
2096.0     17.596    0.002     123.103    0.005
2097.0     17.624    0.002     123.398    0.006
2098.0     17.651    0.002     123.693    0.006
2099.0     17.679    0.002     123.987    0.006
2100.0     17.708    0.002     124.280    0.006




Measurements for STF 1321 AB

WDS ID      Discovr     Comp  #    Sep      PA       Epoch      Obs  Telescope     Camera    Note
-------------------------------------------------------------------------------------------------
09144+5241  STF 1321    AB    1    16.98"   100.1°   B2023.305  HWI  120/900 APO   ASI120MC  

-- Image of STF-1321-AB-taken with Equinox 120/900 APO --


WDS record for STF 1321 AB
wds_id                       : 09144+5241
discoverer_code              : STF
discoverer_number            : 1321
discoverer_components        : AB
date_first                   : 1821
date_last                    : 2021
num_of_obs                   : 480
pa_first                     : 44
pa_last                      : 100
sep_first                    : 21.1
sep_last                     : 17.0
mag_primary                  : 7.79
mag_secondary                : 7.88
spectral_type                : K7V+M0V
primary_proper_motion_RA     : -155
primary_proper_motion_DEC    : -57
secondary_proper_motion_RA   : -157
secondary_proper_motion_DEC  : -66
dm_number                    : +53 1320
notes                        : NO P
precise_coordinate           : 091422.79+524111.8
                             : 09:14:22.79 +52:41:11.8

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 1321 AB
WDS: STF 1321 AB WDS ID/Discoverer
P: 1986.300 Orbital period (years)
a: 25.77 Semi-major axis (arcseconds)
i: 38.3 Inclination (degrees)
Ω: 48.7 Longitude of ascending node (degrees)
T: 1937.200 Epoch of periastron passage (year)
e: 0.241 Eccentricity
ω: 32.1 Argument of periastron (degrees)
Start-Year: 1031.850 Year
End-Year: 3018.150 Year
Epoch: 2023.3 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF 1321 AB
Position: 091422.79+524111.8 Epoch-2000 right ascension and declination
WDS-ID: 09144+5241 WDS designation
Discoverer Code: STF 1321 AB Discover designation and components
ADS number: 7251 Aitken Double Star catalog
HD number: 79210 HD catalog number
Hipparcos number: 45343 Hipparcos catalog number
V1: 7.79 Magnitude of the primary
V2: 7.88 Magnitude of the secondary
Equinox: Equinox
Date: 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: PkO2020 Reference

Double Star Orbit for STF 1321 AB



WDS 6th Orbit including measures of STF 1321 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 1321 AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2023.30   16.969   100.22
--------------------------
1030.00   28.971   263.90
1040.00   28.803   264.99
1050.00   28.630   266.11
1060.00   28.453   267.23
1070.00   28.271   268.37
1080.00   28.086   269.53
1090.00   27.897   270.70
1100.00   27.704   271.88
1110.00   27.509   273.08
1120.00   27.310   274.30
1130.00   27.109   275.54
1140.00   26.906   276.80
1150.00   26.700   278.08
1160.00   26.493   279.37
1170.00   26.284   280.69
1180.00   26.075   282.03
1190.00   25.864   283.38
1200.00   25.654   284.77
1210.00   25.443   286.17
1220.00   25.232   287.60
1230.00   25.022   289.05
1240.00   24.813   290.53
1250.00   24.606   292.03
1260.00   24.400   293.56
1270.00   24.197   295.11
1280.00   23.995   296.69
1290.00   23.797   298.29
1300.00   23.602   299.93
1310.00   23.411   301.58
1320.00   23.224   303.27
1330.00   23.041   304.98
1340.00   22.863   306.72
1350.00   22.691   308.49
1360.00   22.523   310.28
1370.00   22.362   312.10
1380.00   22.207   313.95
1390.00   22.059   315.82
1400.00   21.917   317.72
1410.00   21.782   319.64
1420.00   21.655   321.58
1430.00   21.535   323.55
1440.00   21.423   325.54
1450.00   21.319   327.54
1460.00   21.222   329.57
1470.00   21.134   331.61
1480.00   21.054   333.67
1490.00   20.982   335.75
1500.00   20.917   337.84
1510.00   20.861   339.94
1520.00   20.812   342.05
1530.00   20.771   344.17
1540.00   20.737   346.30
1550.00   20.709   348.43
1560.00   20.688   350.57
1570.00   20.673   352.72
1580.00   20.663   354.86
1590.00   20.659   357.01
1600.00   20.659   359.16
1610.00   20.662     1.31
1620.00   20.669     3.45
1630.00   20.678     5.60
1640.00   20.689     7.74
1650.00   20.700     9.88
1660.00   20.712    12.02
1670.00   20.723    14.16
1680.00   20.732    16.29
1690.00   20.739    18.42
1700.00   20.743    20.55
1710.00   20.743    22.68
1720.00   20.738    24.81
1730.00   20.727    26.95
1740.00   20.710    29.08
1750.00   20.685    31.22
1760.00   20.653    33.37
1770.00   20.612    35.52
1780.00   20.561    37.68
1790.00   20.501    39.86
1800.00   20.431    42.05
1810.00   20.350    44.25
1820.00   20.259    46.48
1830.00   20.157    48.72
1840.00   20.044    50.99
1850.00   19.920    53.28
1860.00   19.786    55.61
1870.00   19.641    57.97
1880.00   19.487    60.36
1890.00   19.324    62.80
1900.00   19.154    65.28
1910.00   18.976    67.80
1920.00   18.793    70.37
1930.00   18.605    72.99
1940.00   18.415    75.67
1950.00   18.223    78.40
1960.00   18.032    81.19
1970.00   17.844    84.04
1980.00   17.660    86.95
1990.00   17.483    89.91
2000.00   17.315    92.94
2010.00   17.158    96.03
2020.00   17.013    99.17
2030.00   16.884   102.36
2040.00   16.772   105.60
2050.00   16.679   108.88
2060.00   16.606   112.19
2070.00   16.556   115.52
2080.00   16.529   118.87
2090.00   16.526   122.23
2100.00   16.548   125.58
2110.00   16.595   128.92
2120.00   16.668   132.24
2130.00   16.766   135.52
2140.00   16.889   138.76
2150.00   17.036   141.94
2160.00   17.206   145.07
2170.00   17.398   148.14
2180.00   17.611   151.13
2190.00   17.844   154.05
2200.00   18.094   156.89
2210.00   18.361   159.65
2220.00   18.643   162.32
2230.00   18.938   164.92
2240.00   19.245   167.44
2250.00   19.562   169.87
2260.00   19.887   172.23
2270.00   20.221   174.51
2280.00   20.560   176.71
2290.00   20.903   178.85
2300.00   21.251   180.91
2310.00   21.600   182.91
2320.00   21.951   184.84
2330.00   22.302   186.71
2340.00   22.652   188.53
2350.00   23.001   190.29
2360.00   23.347   191.99
2370.00   23.690   193.65
2380.00   24.029   195.26
2390.00   24.364   196.83
2400.00   24.694   198.35
2410.00   25.019   199.84
2420.00   25.337   201.28
2430.00   25.650   202.69
2440.00   25.955   204.07
2450.00   26.253   205.41
2460.00   26.544   206.73
2470.00   26.827   208.02
2480.00   27.102   209.28
2490.00   27.368   210.51
2500.00   27.627   211.73
2510.00   27.876   212.92
2520.00   28.117   214.09
2530.00   28.349   215.24
2540.00   28.572   216.37
2550.00   28.786   217.48
2560.00   28.991   218.58
2570.00   29.186   219.66
2580.00   29.372   220.73
2590.00   29.549   221.79
2600.00   29.716   222.83
2610.00   29.874   223.87
2620.00   30.022   224.89
2630.00   30.161   225.90
2640.00   30.290   226.90
2650.00   30.410   227.90
2660.00   30.520   228.89
2670.00   30.621   229.87
2680.00   30.713   230.84
2690.00   30.796   231.81
2700.00   30.869   232.78
2710.00   30.933   233.74
2720.00   30.988   234.69
2730.00   31.034   235.65
2740.00   31.071   236.60
2750.00   31.099   237.54
2760.00   31.118   238.49
2770.00   31.128   239.44
2780.00   31.130   240.38
2790.00   31.123   241.33
2800.00   31.108   242.28
2810.00   31.085   243.23
2820.00   31.053   244.17
2830.00   31.014   245.13
2840.00   30.966   246.08
2850.00   30.910   247.04
2860.00   30.847   248.00
2870.00   30.776   248.97
2880.00   30.698   249.94
2890.00   30.613   250.91
2900.00   30.520   251.89
2910.00   30.420   252.88
2920.00   30.314   253.87
2930.00   30.200   254.88
2940.00   30.081   255.88
2950.00   29.955   256.90
2960.00   29.822   257.93
2970.00   29.684   258.96
2980.00   29.540   260.01
2990.00   29.390   261.06
3000.00   29.235   262.13
3010.00   29.075   263.21
3020.00   28.910   264.30


Parsed GAIA Input Data
Click to expand/collapse the Gaia Input Data:
Star A - gaiadr3.gaia_source
solution_id = 1636148068921376768
designation = Gaia DR3 1022456139210632064
source_id = 1022456139210632064
random_index = 138761282
ref_epoch = 2016.0
ra = 138.5835616152243
ra_error = 0.015589127
dec = 52.68408016691263
dec_error = 0.013035298
parallax = 157.88793077923938
parallax_error = 0.019652834
parallax_over_error = 8033.85
pm = 1647.2037
pmra = -1545.7874520604669
pmra_error = 0.017731367
pmdec = -569.052823523412
pmdec_error = 0.017665254
ra_dec_corr = -0.013801563
ra_parallax_corr = -0.07933456
ra_pmra_corr = 0.16144353
ra_pmdec_corr = 0.31632632
dec_parallax_corr = 0.041153084
dec_pmra_corr = 0.24758089
dec_pmdec_corr = -0.30302468
parallax_pmra_corr = 0.18362288
parallax_pmdec_corr = 0.024226757
pmra_pmdec_corr = 0.07137099
astrometric_n_obs_al = 365
astrometric_n_obs_ac = 365
astrometric_n_good_obs_al = 363
astrometric_n_bad_obs_al = 2
astrometric_gof_al = 2.2408905
astrometric_chi2_al = 1001.2219
astrometric_excess_noise = 0.12741469
astrometric_excess_noise_sig = 16.63452
astrometric_params_solved = 31
astrometric_primary_flag = true
nu_eff_used_in_astrometry = 1.3711776
astrometric_matched_transits = 41
visibility_periods_used = 21
astrometric_sigma5d_max = 0.026150146
matched_transits = 45
new_matched_transits = 14
matched_transits_removed = 4
ipd_gof_harmonic_amplitude = 0.061041985
ipd_gof_harmonic_phase = 119.27017
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 1.0839477
duplicated_source = false
phot_g_n_obs = 381
phot_g_mean_flux = 30516616.77884368
phot_g_mean_flux_error = 7852.7905
phot_g_mean_flux_over_error = 3886.0857
phot_g_mean_mag = 6.976026
phot_bp_n_obs = 39
phot_bp_mean_flux = 9773584.545192773
phot_bp_mean_flux_error = 6363.931
phot_bp_mean_flux_over_error = 1535.7778
phot_bp_mean_mag = 7.8634076
phot_rp_n_obs = 35
phot_rp_mean_flux = 30249389.537696894
phot_rp_mean_flux_error = 13378.576
phot_rp_mean_flux_over_error = 2261.032
phot_rp_mean_mag = 6.046104
phot_bp_rp_excess_factor = 1.3115141
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 = 1.8173037
bp_g = 0.88738155
g_rp = 0.9299221
radial_velocity = 10.642178
radial_velocity_error = 0.122533135
rv_method_used = 1
rv_nb_transits = 24
rv_nb_deblended_transits = 0
rv_visibility_periods_used = 17
rv_expected_sig_to_noise = 763.2043
rv_renormalised_gof = -0.98505044
rv_chisq_pvalue = 0.28901932
rv_time_duration = 955.1872
rv_amplitude_robust = 0.7185707
rv_template_teff = 3900.0
rv_template_logg = 4.5
rv_template_fe_h = 0.25
rv_atm_param_origin = 222
vbroad = 11.425915
vbroad_error = 0.5818656
vbroad_nb_transits = 22
grvs_mag = 5.6585627
grvs_mag_error = 0.0047489936
grvs_mag_nb_transits = 24
rvs_spec_sig_to_noise = 829.6664
phot_variable_flag = NOT_AVAILABLE
l = 164.94062343071144
b = 42.66121164995245
ecl_lon = 123.59830218737616
ecl_lat = 34.761394807912374
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 = 1.3750302e-13
classprob_dsc_combmod_galaxy = 6.868207e-13
classprob_dsc_combmod_star = 0.99648726
teff_gspphot = 3745.384
teff_gspphot_lower = 3729.2944
teff_gspphot_upper = 3786.4963
logg_gspphot = 4.5113
logg_gspphot_lower = 4.4799
logg_gspphot_upper = 4.5419
mh_gspphot = -0.5138
mh_gspphot_lower = -0.5891
mh_gspphot_upper = -0.3585
distance_gspphot = 6.3395
distance_gspphot_lower = 6.321
distance_gspphot_upper = 6.3581
azero_gspphot = 0.0004
azero_gspphot_lower = 0.0001
azero_gspphot_upper = 0.0031
ag_gspphot = 0.0003
ag_gspphot_lower = 0.0
ag_gspphot_upper = 0.0022
ebpminrp_gspphot = 0.0001
ebpminrp_gspphot_lower = 0.0
ebpminrp_gspphot_upper = 0.0013
libname_gspphot = PHOENIX
    Star B - gaiadr3.gaia_source
solution_id = 1636148068921376768
designation = Gaia DR3 1022456104850892928
source_id = 1022456104850892928
random_index = 1170976427
ref_epoch = 2016.0
ra = 138.5913117966687
ra_error = 0.01562361
dec = 52.68342944184038
dec_error = 0.0145306615
parallax = 157.8824911260602
parallax_error = 0.021135049
parallax_over_error = 7470.174
pm = 1705.8522
pmra = -1573.0402244550992
pmra_error = 0.017991045
pmdec = -659.9060008123529
pmdec_error = 0.018531306
ra_dec_corr = -0.022394901
ra_parallax_corr = -0.1661414
ra_pmra_corr = 0.0855685
ra_pmdec_corr = 0.32885888
dec_parallax_corr = -0.038569655
dec_pmra_corr = 0.24808063
dec_pmdec_corr = -0.30350822
parallax_pmra_corr = 0.16755842
parallax_pmdec_corr = -0.050138995
pmra_pmdec_corr = 0.076136746
astrometric_n_obs_al = 363
astrometric_n_obs_ac = 363
astrometric_n_good_obs_al = 361
astrometric_n_bad_obs_al = 2
astrometric_gof_al = 3.125173
astrometric_chi2_al = 1031.5399
astrometric_excess_noise = 0.13858826
astrometric_excess_noise_sig = 18.680109
astrometric_params_solved = 31
astrometric_primary_flag = true
nu_eff_used_in_astrometry = 1.3671384
astrometric_matched_transits = 41
visibility_periods_used = 22
astrometric_sigma5d_max = 0.027045295
matched_transits = 44
new_matched_transits = 15
matched_transits_removed = 5
ipd_gof_harmonic_amplitude = 0.06227299
ipd_gof_harmonic_phase = 178.32274
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 1.118406
duplicated_source = false
phot_g_n_obs = 377
phot_g_mean_flux = 28389962.926592026
phot_g_mean_flux_error = 6835.6973
phot_g_mean_flux_over_error = 4153.192
phot_g_mean_mag = 7.054455
phot_bp_n_obs = 42
phot_bp_mean_flux = 8946524.276294766
phot_bp_mean_flux_error = 5412.428
phot_bp_mean_flux_over_error = 1652.9595
phot_bp_mean_mag = 7.9594064
phot_rp_n_obs = 40
phot_rp_mean_flux = 28443015.984362353
phot_rp_mean_flux_error = 12089.323
phot_rp_mean_flux_over_error = 2352.7385
phot_rp_mean_mag = 6.1129565
phot_bp_rp_excess_factor = 1.3169986
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 = 1.8464499
bp_g = 0.9049516
g_rp = 0.9414983
radial_velocity = 11.969568
radial_velocity_error = 0.122066654
rv_method_used = 1
rv_nb_transits = 24
rv_nb_deblended_transits = 0
rv_visibility_periods_used = 17
rv_expected_sig_to_noise = 729.5842
rv_renormalised_gof = -2.5783463
rv_chisq_pvalue = 0.50266576
rv_time_duration = 955.18726
rv_amplitude_robust = 0.8336086
rv_template_teff = 3800.0
rv_template_logg = 4.5
rv_template_fe_h = 0.25
rv_atm_param_origin = 222
vbroad = 13.637174
vbroad_error = 0.61193717
vbroad_nb_transits = 22
grvs_mag = 5.7199235
grvs_mag_error = 0.0047096703
grvs_mag_nb_transits = 24
rvs_spec_sig_to_noise = 792.5533
phot_variable_flag = NOT_AVAILABLE
l = 164.9403034685423
b = 42.665948928286376
ecl_lon = 123.60391837745611
ecl_lat = 34.7624945711399
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 = false
has_mcmc_msc = false
in_andromeda_survey = false
classprob_dsc_combmod_quasar = 1.3750302e-13
classprob_dsc_combmod_galaxy = 6.868207e-13
classprob_dsc_combmod_star = 0.99648726
- gaiadr3.astrophysical_parameters
solution_id = 1636148068921376768
source_id = 1022456139210632064
classprob_dsc_combmod_quasar = 1.3750302e-13
classprob_dsc_combmod_galaxy = 6.868207e-13
classprob_dsc_combmod_star = 0.99648726
classprob_dsc_combmod_whitedwarf = 2.6990153e-12
classprob_dsc_combmod_binarystar = 0.0035127662
classprob_dsc_specmod_quasar = 0.0
classprob_dsc_specmod_galaxy = 0.0
classprob_dsc_specmod_star = 0.73935795
classprob_dsc_specmod_whitedwarf = 0.0
classprob_dsc_specmod_binarystar = 0.26064208
classprob_dsc_allosmod_quasar = 0.0
classprob_dsc_allosmod_galaxy = 0.0
classprob_dsc_allosmod_star = 1.0
teff_gspphot = 3745.384
teff_gspphot_lower = 3729.2944
teff_gspphot_upper = 3786.4963
logg_gspphot = 4.5113
logg_gspphot_lower = 4.4799
logg_gspphot_upper = 4.5419
mh_gspphot = -0.5138
mh_gspphot_lower = -0.5891
mh_gspphot_upper = -0.3585
distance_gspphot = 6.3395
distance_gspphot_lower = 6.321
distance_gspphot_upper = 6.3581
azero_gspphot = 0.0004
azero_gspphot_lower = 0.0001
azero_gspphot_upper = 0.0031
ag_gspphot = 0.0003
ag_gspphot_lower = 0.0
ag_gspphot_upper = 0.0022
abp_gspphot = 0.0003
abp_gspphot_lower = 0.0001
abp_gspphot_upper = 0.003
arp_gspphot = 0.0002
arp_gspphot_lower = 0.0
arp_gspphot_upper = 0.0018
ebpminrp_gspphot = 0.0001
ebpminrp_gspphot_lower = 0.0
ebpminrp_gspphot_upper = 0.0013
mg_gspphot = 7.9866
mg_gspphot_lower = 7.9434
mg_gspphot_upper = 7.9944
radius_gspphot = 0.6697
radius_gspphot_lower = 0.6619
radius_gspphot_upper = 0.6748
logposterior_gspphot = -30341.662
mcmcaccept_gspphot = 0.35335425
libname_gspphot = PHOENIX
teff_gspspec = 4120.0
teff_gspspec_lower = 4119.0
teff_gspspec_upper = 4124.0
logg_gspspec = 5.04
logg_gspspec_lower = 5.01
logg_gspspec_upper = 5.05
mh_gspspec = -0.2
mh_gspspec_lower = -0.26
mh_gspspec_upper = -0.18
alphafe_gspspec = 0.15
alphafe_gspspec_lower = 0.15
alphafe_gspspec_upper = 0.15
dibqf_gspspec = -2
flags_gspspec = 00000001000009999999999999999999999999999
logchisq_gspspec = -2.5955524
ew_espels_halpha = 0.1556046
ew_espels_halpha_uncertainty = 0.021431258
ew_espels_halpha_flag = 1
ew_espels_halpha_model = -0.537369
flags_esphs = 93
spectraltype_esphs = K
activityindex_espcs = 0.009306859
activityindex_espcs_uncertainty = 6.573566e-05
activityindex_espcs_input = M2
radius_flame = 0.6771487
radius_flame_lower = 0.65228975
radius_flame_upper = 0.7020123
lum_flame = 0.08129904
lum_flame_lower = 0.07629347
lum_flame_upper = 0.08630594
flags_flame = 20
evolstage_flame = 260
gravredshift_flame = 0.5105897
gravredshift_flame_lower = 0.4805818
gravredshift_flame_upper = 0.53775185
bc_flame = -0.5030075
neuron_oa_id = 202105281205440456
neuron_oa_dist = 4.591043e-06
neuron_oa_dist_percentile_rank = 75
flags_oa = 0012
    - gaiadr3.astrophysical_parameters
solution_id = 1636148068921376768
source_id = 1022456104850892928
classprob_dsc_combmod_quasar = 1.3750302e-13
classprob_dsc_combmod_galaxy = 6.868207e-13
classprob_dsc_combmod_star = 0.99648726
classprob_dsc_combmod_whitedwarf = 2.6990153e-12
classprob_dsc_combmod_binarystar = 0.0035127662
classprob_dsc_specmod_quasar = 0.0
classprob_dsc_specmod_galaxy = 0.0
classprob_dsc_specmod_star = 0.73935795
classprob_dsc_specmod_whitedwarf = 0.0
classprob_dsc_specmod_binarystar = 0.26064208
classprob_dsc_allosmod_quasar = 0.0
classprob_dsc_allosmod_galaxy = 0.0
classprob_dsc_allosmod_star = 1.0
teff_gspspec = 4097.0
teff_gspspec_lower = 4094.0
teff_gspspec_upper = 4099.0
logg_gspspec = 5.03
logg_gspspec_lower = 5.01
logg_gspspec_upper = 5.04
mh_gspspec = -0.21
mh_gspspec_lower = -0.32
mh_gspspec_upper = -0.2
alphafe_gspspec = 0.14
alphafe_gspspec_lower = 0.13
alphafe_gspspec_upper = 0.14
dibqf_gspspec = -2
flags_gspspec = 01000001000009999999999999999999999999999
logchisq_gspspec = -2.608525
ew_espels_halpha = 0.082775585
ew_espels_halpha_uncertainty = 0.019999653
ew_espels_halpha_flag = 1
ew_espels_halpha_model = -0.477703
flags_esphs = 94
spectraltype_esphs = K
activityindex_espcs_input = M2
neuron_oa_id = 202105281205440426
neuron_oa_dist = 4.784006e-06
neuron_oa_dist_percentile_rank = 68
flags_oa = 0022




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 08:30:20 +0200



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