Double Star Calculator - Results


STF 2789 AB - Astrometric and kinematic properties
Gaia Source ID - Star A          : 2175444507873336448     Simbad
Gaia Source ID - Star B          : 2175444507873336832     Simbad
Observation Epoch : J2025.715 / 2025-09-19 Angular Separation : 6.849 ± 0.0004 arcsec Position Angle : 114.59 ± 0.0035 degree
Star A/B Epoch : J2016.000 / J2016.000 Angular Separation : 6.853 < 0.0001 arcsec Position Angle : 114.25 ± 0.0003 degree Projected Separation : 564 au Spatial Separation : 1164 ± 49435 au Parallax Significance : 0.02 σ 3D Space Velocity Angle : 1.18 ± 0.15 degree ΔProper Motion Angle : 1.57 ± 0.04 degree ΔTotal Proper Motion : 3.83 ± 0.05 mas/yr ΔTangential Velocity : 1.50 ± 0.08 km/s ΔRadial Velocity : 1.20 ± 0.26 km/s ΔSpeed (scalar) : 1.86 ± 0.21 km/s ΔRelative Velocity (3D) : 2.02 ± 0.16 km/s

Aladin Lite Sky Atlas



Star A - Stellar Data
Gaia Source ID                   : 2175444507873336448           VizieR
Epoch : J2016.000 Right Ascension (RA) : 21h 19m 58.86s Declination (Dec) : 52° 58' 45.12" Distance : 82.36 ± 0.25 pc Distance : 268.61 ± 0.82 ly Magnitude (G-band) : 7.51 mag Absolute Magnitude : 2.89 ± 0.02 mag Stellar Extinction : 0.04 ± 0.02 mag Spectral Type (BP/RP) : G Bolometric correction : -0.10 mag Luminosity : 6.07 + 0.13 / − 0.13 L☉ Log(Luminosity) : 0.78322 Effective temperature (Teff) : 5886.69 +48.77 / -39.16 K Log(Teff) : 3.76987 Mass estimation : 1.40 M☉ RUWE : 2.29 Position Angle of Proper Motion : 8.18 ± 0.04 degree Total Proper Motion : 60.94 ± 0.04 mas/yr Tangential Velocity : 23.79 ± 0.07 km/s Radial Velocity (Gaia) : 30.73 ± 0.22 km/s Space Velocity : 38.86 ± 0.18 km/s

Star A - Selected astrophysical parameters
DSC-Combmod binary star          :       0.00
DSC-Specmod binary star          :       0.07
Radius from GSP-Phot Aeneas      :       2.26  ±   0.01          R☉
Spectral type from ESP-ELS       :          G
Radius of the star from FLAME    :       2.22  ±   0.05          R☉
Bolometric correction            :       0.03                    mag
Luminosity of the star (FLAME)   :       5.35  ±   0.09          L☉
Mass of the star from FLAME      :       1.29  ±   0.04          M☉
FLAME quality indicators         :         00
  Quality                        :       OK
  Source                         :       Parallax used
Evolutionary stage from FLAME    :        432      Subgiant Branch

Star A - Double Star Quality Metrics
Parallax over error :    326.530 : very good
RUWE                :      2.290 : poor astrometric fit, (possible double)
Non Single Star     :            : Single Star
Duplicated source   :      false : single source
G magnitude         :      7.506 : G > 3 mag, photometry reliable
Excess noise        :      0.400 : Good fit
  Significance      :    127.620 :   Minor noise, likely negligible
BP-RP excess factor :      1.204 : photometry consistent
Visibility periods  :         25 : high, indicates well observed star
IPD multi-peak frac :         0% : single peak detected
IDP GoF harmonic amp:      0.011 : unobtrusive (single star source)


Star B - Stellar Data
Gaia Source ID                   : 2175444507873336832           VizieR
Epoch : J2016.000 Right Ascension (RA) : 21h 19m 59.55s Declination (Dec) : 52° 58' 42.31" Distance : 82.35 ± 0.11 pc Distance : 268.60 ± 0.35 ly Magnitude (G-band) : 7.64 mag Absolute Magnitude : 2.97 ± 0.01 mag Stellar Extinction : 0.09 ± 0.01 mag Spectral Type (BP/RP) : G Bolometric correction : -0.10 mag Luminosity : 5.63 + 0.05 / − 0.05 L☉ Log(Luminosity) : 0.75046 Effective temperature (Teff) : 5253.60 + 9.89 / -15.89 K Log(Teff) : 3.72046 Mass estimation : 1.38 M☉ RUWE : 0.93 Position Angle of Proper Motion : 6.61 ± 0.02 degree Total Proper Motion : 57.11 ± 0.02 mas/yr Tangential Velocity : 22.29 ± 0.03 km/s Radial Velocity (Gaia) : 29.53 ± 0.13 km/s Space Velocity : 37.00 ± 0.10 km/s

Star B - Selected astrophysical parameters
DSC-Combmod binary star          :       1.00
DSC-Specmod binary star          :       1.00
Radius from GSP-Phot Aeneas      :       2.72  ±   0.02          R☉
Spectral type from ESP-ELS       :          K
Radius of the star from FLAME    :       2.71  ±   0.05          R☉
Bolometric correction            :       0.01                    mag
Luminosity of the star (FLAME)   :       5.03  ±   0.03          L☉
Mass of the star from FLAME      :       1.37  ±   0.04          M☉
FLAME quality indicators         :         00
  Quality                        :       OK
  Source                         :       Parallax used
Evolutionary stage from FLAME    :        488      Subgiant Branch

Star B - Double Star Quality Metrics
Parallax over error :    768.675 : very good
RUWE                :      0.930 : good astrometric fit (single star)
Non Single Star     :            : Single Star
Duplicated source   :      false : single source
G magnitude         :      7.638 : G > 3 mag, photometry reliable
Excess noise        :      0.107 : Very good fit
  Significance      :      7.991 :   Reliable single-star astrometry
BP-RP excess factor :      1.219 : photometry consistent
Visibility periods  :         24 : high, indicates well observed star
IPD multi-peak frac :         0% : single peak detected
IDP GoF harmonic amp:      0.012 : 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)          :        0.07     (CPM)

Co-Moving

UWLE for Co-Moving Pairs (3D)      :
===================================
COMOV: Velocity Evidence Indicator :        0.85     (Strong)
COMOV: Distance Evidence Indicator :        0.97     (Strong)
Co-Moving Total Evidence Indicator :        0.91     (Strong)

rPM/COMOV Agreement                :                 (High)

Binarity

Separation, Sigma and Reliability  :
===================================
Projected Separation               :         564     au
Spatial Separation                 :        1164  ±    49435  au
  1-Sigma Range                    : [       564,      50599] au
  Significance                     :        0.02     σ
  Note: 3D distance not significantly resolved

3D spatial distance probabilities : =================================== P(D-3D <= 1129 au) : 0.9 % (2.0 * D-projected) P(D-3D <= 1210 au) : 1.0 % (D-critical) P(D-3D <= 2500 au) : 3.1 % (Wide binary) P(D-3D <= 10000 au) : 15.0 % (Wide binary) P(D-3D <= 20000 au) : 30.4 % (Very wide binary) P(D-3D <= 50000 au) : 68.0 % (Extremely wide) P(D-3D <= 206265 au) : 100.0 % (Jacobi radius)

Proper Motion and Velocity         :
===================================
rPM (Proper Motion Ratio)          :        0.07     (CPM)
ΔRelative Velocity (3D)            :        2.02  ±  0.16   km/s

UWLE for Wide Binaries (3D)        :
===================================
WBS: Velocity Evidence Indicator   :        0.34     (Moderate)
WBS: Distance Evidence Indicator   :        0.38     (Moderate)
Binarity Total Evidence Indicator  :        0.36     (Moderate)

Orbital & Binding Dynamics         :
-----------------------------------
Est. orbital period at 3D Sep.     :    20639.60            years
Escape Velocity                    :        2.06            km/s (Barely bound)
3D Velocity Difference             :        2.02  ±  0.16   km/s
Circular Orbital Velocity          :        1.46            km/s
Binding Indicator η                :        0.96     (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   :        0.59     (Moderate)
WBS: Distance Evidence Indicator   :        0.38     (Moderate)
Binarity Total Evidence Indicator  :        0.47     (Moderate)

Orbital & Binding Dynamics         :
-----------------------------------
Est. orbital period at lower bound :     6967.70            years
Escape Velocity                    :        2.96            km/s (Bound)
3D Velocity Difference             :        2.02  ±  0.16   km/s
Circular Orbital Velocity          :        2.09            km/s
Binding Indicator η                :        0.47     (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 : 0.59 (Moderate) TBS: Distance Evidence Indicator : 0.73 (Strong) Binarity Total Evidence Indicator : 0.66 (Moderate) Orbital & Binding Dynamics : ----------------------------------- Est. orbital period at lower bound : 6967.70 years Escape Velocity : 2.96 km/s (Bound) 3D Velocity Difference : 2.02 ± 0.16 km/s Circular Orbital Velocity : 2.09 km/s Binding Indicator η : 0.47 (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]         :     -0.9804  ± 0.0452 dex
  Metallicity reliability factor A :        0.98
Metallicity Star B - [M/H]         :     -0.3966  ± 0.0214 dex
  Metallicity reliability factor B :        0.94
Metallicity Difference             :      0.5838           dex
Combined uncertainty               :      0.2159           dex
Sigma-Distance (Z-Score)           :      2.70 σ
  Compatibility                    :  Marginal (possible agreement)

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) :  2.29 : Medium
RUWE probability for a binary system (Star B) :  0.93 : 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      6.920    0.005     110.278    0.041
1901.0      6.920    0.005     110.312    0.041
1902.0      6.919    0.005     110.346    0.041
1903.0      6.918    0.005     110.380    0.040
1904.0      6.917    0.005     110.414    0.040
1905.0      6.917    0.005     110.448    0.040
1906.0      6.916    0.005     110.482    0.039
1907.0      6.915    0.005     110.516    0.039
1908.0      6.915    0.005     110.550    0.039
1909.0      6.914    0.005     110.584    0.038
1910.0      6.913    0.005     110.618    0.038
1911.0      6.913    0.005     110.652    0.038
1912.0      6.912    0.005     110.686    0.037
1913.0      6.911    0.005     110.720    0.037
1914.0      6.910    0.005     110.754    0.037
1915.0      6.910    0.005     110.788    0.036
1916.0      6.909    0.005     110.822    0.036
1917.0      6.908    0.005     110.856    0.035
1918.0      6.908    0.004     110.890    0.035
1919.0      6.907    0.004     110.924    0.035
1920.0      6.906    0.004     110.958    0.034
1921.0      6.906    0.004     110.992    0.034
1922.0      6.905    0.004     111.026    0.034
1923.0      6.904    0.004     111.060    0.033
1924.0      6.904    0.004     111.094    0.033
1925.0      6.903    0.004     111.128    0.033
1926.0      6.902    0.004     111.162    0.032
1927.0      6.902    0.004     111.196    0.032
1928.0      6.901    0.004     111.230    0.032
1929.0      6.900    0.004     111.265    0.031
1930.0      6.900    0.004     111.299    0.031
1931.0      6.899    0.004     111.333    0.030
1932.0      6.898    0.004     111.367    0.030
1933.0      6.898    0.004     111.401    0.030
1934.0      6.897    0.004     111.435    0.029
1935.0      6.897    0.004     111.469    0.029
1936.0      6.896    0.004     111.503    0.029
1937.0      6.895    0.004     111.538    0.028
1938.0      6.895    0.004     111.572    0.028
1939.0      6.894    0.004     111.606    0.028
1940.0      6.893    0.003     111.640    0.027
1941.0      6.893    0.003     111.674    0.027
1942.0      6.892    0.003     111.708    0.027
1943.0      6.892    0.003     111.743    0.026
1944.0      6.891    0.003     111.777    0.026
1945.0      6.890    0.003     111.811    0.026
1946.0      6.890    0.003     111.845    0.025
1947.0      6.889    0.003     111.879    0.025
1948.0      6.888    0.003     111.914    0.024
1949.0      6.888    0.003     111.948    0.024
1950.0      6.887    0.003     111.982    0.024
1951.0      6.887    0.003     112.016    0.023
1952.0      6.886    0.003     112.051    0.023
1953.0      6.885    0.003     112.085    0.023
1954.0      6.885    0.003     112.119    0.022
1955.0      6.884    0.003     112.153    0.022
1956.0      6.884    0.003     112.188    0.022
1957.0      6.883    0.003     112.222    0.021
1958.0      6.883    0.003     112.256    0.021
1959.0      6.882    0.003     112.291    0.021
1960.0      6.881    0.003     112.325    0.020
1961.0      6.881    0.003     112.359    0.020
1962.0      6.880    0.002     112.393    0.019
1963.0      6.880    0.002     112.428    0.019
1964.0      6.879    0.002     112.462    0.019
1965.0      6.879    0.002     112.496    0.018
1966.0      6.878    0.002     112.531    0.018
1967.0      6.877    0.002     112.565    0.018
1968.0      6.877    0.002     112.599    0.017
1969.0      6.876    0.002     112.634    0.017
1970.0      6.876    0.002     112.668    0.017
1971.0      6.875    0.002     112.702    0.016
1972.0      6.875    0.002     112.737    0.016
1973.0      6.874    0.002     112.771    0.016
1974.0      6.874    0.002     112.806    0.015
1975.0      6.873    0.002     112.840    0.015
1976.0      6.873    0.002     112.874    0.014
1977.0      6.872    0.002     112.909    0.014
1978.0      6.871    0.002     112.943    0.014
1979.0      6.871    0.002     112.977    0.013
1980.0      6.870    0.002     113.012    0.013
1981.0      6.870    0.002     113.046    0.013
1982.0      6.869    0.002     113.081    0.012
1983.0      6.869    0.002     113.115    0.012
1984.0      6.868    0.001     113.150    0.012
1985.0      6.868    0.001     113.184    0.011
1986.0      6.867    0.001     113.218    0.011
1987.0      6.867    0.001     113.253    0.010
1988.0      6.866    0.001     113.287    0.010
1989.0      6.866    0.001     113.322    0.010
1990.0      6.865    0.001     113.356    0.009
1991.0      6.865    0.001     113.391    0.009
1992.0      6.864    0.001     113.425    0.009
1993.0      6.864    0.001     113.460    0.008
1994.0      6.863    0.001     113.494    0.008
1995.0      6.863    0.001     113.528    0.008
1996.0      6.862    0.001     113.563    0.007
1997.0      6.862    0.001     113.597    0.007
1998.0      6.861    0.001     113.632    0.007
1999.0      6.861    0.001     113.666    0.006
2000.0      6.860    0.001     113.701    0.006
2001.0      6.860    0.001     113.735    0.005
2002.0      6.859    0.001     113.770    0.005
2003.0      6.859    0.001     113.805    0.005
2004.0      6.858    0.001     113.839    0.004
2005.0      6.858    0.001     113.874    0.004
2006.0      6.858    0.000     113.908    0.004
2007.0      6.857    0.000     113.943    0.003
2008.0      6.857    0.000     113.977    0.003
2009.0      6.856    0.000     114.012    0.003
2010.0      6.856    0.000     114.046    0.002
2011.0      6.855    0.000     114.081    0.002
2012.0      6.855    0.000     114.115    0.001
2013.0      6.854    0.000     114.150    0.001
2014.0      6.854    0.000     114.185    0.001
2015.0      6.854    0.000     114.219    0.000
2016.0      6.853    0.000     114.254    0.000
2017.0      6.853    0.000     114.288    0.000
2018.0      6.852    0.000     114.323    0.001
2019.0      6.852    0.000     114.357    0.001
2020.0      6.851    0.000     114.392    0.001
2021.0      6.851    0.000     114.427    0.002
2022.0      6.851    0.000     114.461    0.002
2023.0      6.850    0.000     114.496    0.003
2024.0      6.850    0.000     114.530    0.003
2025.0      6.849    0.000     114.565    0.003
2026.0      6.849    0.000     114.600    0.004
2027.0      6.848    0.001     114.634    0.004
2028.0      6.848    0.001     114.669    0.004
2029.0      6.848    0.001     114.704    0.005
2030.0      6.847    0.001     114.738    0.005
2031.0      6.847    0.001     114.773    0.005
2032.0      6.846    0.001     114.807    0.006
2033.0      6.846    0.001     114.842    0.006
2034.0      6.846    0.001     114.877    0.007
2035.0      6.845    0.001     114.911    0.007
2036.0      6.845    0.001     114.946    0.007
2037.0      6.844    0.001     114.981    0.008
2038.0      6.844    0.001     115.015    0.008
2039.0      6.844    0.001     115.050    0.008
2040.0      6.843    0.001     115.085    0.009
2041.0      6.843    0.001     115.119    0.009
2042.0      6.843    0.001     115.154    0.009
2043.0      6.842    0.001     115.189    0.010
2044.0      6.842    0.001     115.224    0.010
2045.0      6.841    0.001     115.258    0.011
2046.0      6.841    0.001     115.293    0.011
2047.0      6.841    0.001     115.328    0.011
2048.0      6.840    0.001     115.362    0.012
2049.0      6.840    0.002     115.397    0.012
2050.0      6.840    0.002     115.432    0.012
2051.0      6.839    0.002     115.466    0.013
2052.0      6.839    0.002     115.501    0.013
2053.0      6.839    0.002     115.536    0.013
2054.0      6.838    0.002     115.571    0.014
2055.0      6.838    0.002     115.605    0.014
2056.0      6.838    0.002     115.640    0.015
2057.0      6.837    0.002     115.675    0.015
2058.0      6.837    0.002     115.710    0.015
2059.0      6.837    0.002     115.744    0.016
2060.0      6.836    0.002     115.779    0.016
2061.0      6.836    0.002     115.814    0.016
2062.0      6.836    0.002     115.849    0.017
2063.0      6.835    0.002     115.883    0.017
2064.0      6.835    0.002     115.918    0.017
2065.0      6.835    0.002     115.953    0.018
2066.0      6.834    0.002     115.988    0.018
2067.0      6.834    0.002     116.022    0.019
2068.0      6.834    0.002     116.057    0.019
2069.0      6.833    0.002     116.092    0.019
2070.0      6.833    0.002     116.127    0.020
2071.0      6.833    0.003     116.161    0.020
2072.0      6.833    0.003     116.196    0.020
2073.0      6.832    0.003     116.231    0.021
2074.0      6.832    0.003     116.266    0.021
2075.0      6.832    0.003     116.301    0.021
2076.0      6.831    0.003     116.335    0.022
2077.0      6.831    0.003     116.370    0.022
2078.0      6.831    0.003     116.405    0.023
2079.0      6.831    0.003     116.440    0.023
2080.0      6.830    0.003     116.475    0.023
2081.0      6.830    0.003     116.509    0.024
2082.0      6.830    0.003     116.544    0.024
2083.0      6.830    0.003     116.579    0.024
2084.0      6.829    0.003     116.614    0.025
2085.0      6.829    0.003     116.649    0.025
2086.0      6.829    0.003     116.684    0.025
2087.0      6.828    0.003     116.718    0.026
2088.0      6.828    0.003     116.753    0.026
2089.0      6.828    0.003     116.788    0.027
2090.0      6.828    0.003     116.823    0.027
2091.0      6.827    0.003     116.858    0.027
2092.0      6.827    0.003     116.893    0.028
2093.0      6.827    0.004     116.927    0.028
2094.0      6.827    0.004     116.962    0.028
2095.0      6.826    0.004     116.997    0.029
2096.0      6.826    0.004     117.032    0.029
2097.0      6.826    0.004     117.067    0.030
2098.0      6.826    0.004     117.102    0.030
2099.0      6.826    0.004     117.136    0.030
2100.0      6.825    0.004     117.171    0.031




Measurements for STF 2789 AB
 
WDS ID      Discovr     Comp  #    Sep      PA       Epoch      Obs  Telescope     Camera    Note
--------------------------------------------------------------------------------------------------
21200+5259  STF 2789    AB    1    6.95"    114.2°   B2025.720  HWI  120/900 APO   ASI678MM

-- Image of STF-2789-AB-taken with Equinox 120/900 APO --


WDS record for STF 2789 AB
wds_id                       : 21200+5259
discoverer_code              : STF
discoverer_number            : 2789
discoverer_components        : AB
date_first                   : 1828
date_last                    : 2023
num_of_obs                   : 120
pa_first                     : 115
pa_last                      : 114
sep_first                    : 6.1
sep_last                     : 7.1
mag_primary                  : 7.71
mag_secondary                : 7.87
spectral_type                : F8V
primary_proper_motion_RA     : 10
primary_proper_motion_DEC    : 60
secondary_proper_motion_RA   : 9
secondary_proper_motion_DEC  : 56
dm_number                    : +52 2916
notes                        : OWT
precise_coordinate           : 211958.84+525844.1
                             : 21:19:58.84 +52:58:44.1

WDS Notes:
----------
O: Orbit described in WDSNOT MEMO and has entry in Orbit Catalog
W: System has additional components/measures in WDSS catalog
T: Similar parallax/proper motion: physical


Orbital Elements for STF 2789 AB
WDS: STF 2789 AB WDS ID/Discoverer
P: 18000.000 Orbital period (years)
a: 12.0 Semi-major axis (arcseconds)
i: 96.0 Inclination (degrees)
Ω: 290.0 Longitude of ascending node (degrees)
T: 550.000 Epoch of periastron passage (year)
e: 0.54 Eccentricity
ω: 60.0 Argument of periastron (degrees)
Start-Year: -6975.000 Year
End-Year: 11025.000 Year
Epoch: 2025.72 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF 2789 AB
Position: 211958.84+525844.1 Epoch-2000 right ascension and declination
WDS-ID: 21200+5259 WDS designation
Discoverer Code: STF 2789 AB Discover designation and components
ADS number: 14878 Aitken Double Star catalog
HD number: 203380 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 7.71 Magnitude of the primary
V2: 7.87 Magnitude of the secondary
Equinox: Equinox
Date: 2005 Date of last observation
Orbit grade: 5 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
8 = Interferometric
9 = Astrometric
Flags: Flags
Ephemerides: Ephemerides
Code: Kis2009 Reference

Double Star Orbit for STF 2789 AB



WDS 6th Orbit including measures of STF 2789 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 2789 AB
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2025.72    6.944   113.89
--------------------------
-7000.00    6.331    93.62
-6900.00    6.105    92.96
-6800.00    5.877    92.26
-6700.00    5.648    91.49
-6600.00    5.418    90.67
-6500.00    5.188    89.77
-6400.00    4.957    88.78
-6300.00    4.726    87.70
-6200.00    4.494    86.51
-6100.00    4.264    85.18
-6000.00    4.034    83.71
-5900.00    3.805    82.06
-5800.00    3.579    80.20
-5700.00    3.355    78.09
-5600.00    3.135    75.68
-5500.00    2.920    72.91
-5400.00    2.712    69.71
-5300.00    2.513    65.99
-5200.00    2.324    61.65
-5100.00    2.151    56.57
-5000.00    1.996    50.66
-4900.00    1.865    43.84
-4800.00    1.763    36.11
-4700.00    1.696    27.60
-4600.00    1.667    18.60
-4500.00    1.680     9.52
-4400.00    1.733     0.79
-4300.00    1.823   352.75
-4200.00    1.944   345.58
-4100.00    2.090   339.33
-4000.00    2.256   333.95
-3900.00    2.438   329.34
-3800.00    2.633   325.39
-3700.00    2.836   321.99
-3600.00    3.046   319.06
-3500.00    3.261   316.50
-3400.00    3.479   314.27
-3300.00    3.699   312.30
-3200.00    3.919   310.55
-3100.00    4.140   308.99
-3000.00    4.361   307.59
-2900.00    4.579   306.32
-2800.00    4.796   305.17
-2700.00    5.009   304.11
-2600.00    5.219   303.14
-2500.00    5.424   302.25
-2400.00    5.624   301.42
-2300.00    5.819   300.64
-2200.00    6.007   299.92
-2100.00    6.188   299.24
-2000.00    6.360   298.59
-1900.00    6.524   297.98
-1800.00    6.677   297.40
-1700.00    6.818   296.84
-1600.00    6.948   296.31
-1500.00    7.063   295.79
-1400.00    7.164   295.29
-1300.00    7.247   294.81
-1200.00    7.312   294.33
-1100.00    7.356   293.86
-1000.00    7.377   293.39
-900.00    7.373   292.92
-800.00    7.341   292.46
-700.00    7.279   291.98
-600.00    7.183   291.50
-500.00    7.051   291.00
-400.00    6.878   290.48
-300.00    6.662   289.92
-200.00    6.399   289.33
-100.00    6.087   288.68
0.00    5.722   287.95
100.00    5.304   287.12
200.00    4.832   286.13
300.00    4.309   284.92
400.00    3.738   283.35
500.00    3.124   281.18
600.00    2.479   277.92
700.00    1.816   272.29
800.00    1.169   260.30
900.00    0.665   225.73
1000.00    0.755   164.25
1100.00    1.321   137.98
1200.00    1.981   128.26
1300.00    2.652   123.44
1400.00    3.314   120.56
1500.00    3.957   118.63
1600.00    4.579   117.24
1700.00    5.176   116.17
1800.00    5.748   115.32
1900.00    6.294   114.62
2000.00    6.814   114.03
2100.00    7.309   113.52
2200.00    7.779   113.07
2300.00    8.225   112.68
2400.00    8.647   112.32
2500.00    9.047   112.00
2600.00    9.425   111.70
2700.00    9.782   111.43
2800.00   10.119   111.17
2900.00   10.437   110.93
3000.00   10.736   110.70
3100.00   11.018   110.49
3200.00   11.283   110.29
3300.00   11.531   110.09
3400.00   11.763   109.90
3500.00   11.981   109.72
3600.00   12.184   109.55
3700.00   12.372   109.38
3800.00   12.548   109.22
3900.00   12.711   109.06
4000.00   12.861   108.91
4100.00   12.999   108.75
4200.00   13.125   108.61
4300.00   13.240   108.46
4400.00   13.345   108.32
4500.00   13.439   108.18
4600.00   13.522   108.04
4700.00   13.596   107.90
4800.00   13.661   107.76
4900.00   13.716   107.63
5000.00   13.762   107.49
5100.00   13.800   107.36
5200.00   13.829   107.23
5300.00   13.850   107.09
5400.00   13.863   106.96
5500.00   13.868   106.83
5600.00   13.866   106.70
5700.00   13.856   106.57
5800.00   13.840   106.43
5900.00   13.816   106.30
6000.00   13.786   106.17
6100.00   13.749   106.04
6200.00   13.706   105.90
6300.00   13.656   105.77
6400.00   13.600   105.63
6500.00   13.539   105.49
6600.00   13.471   105.35
6700.00   13.398   105.21
6800.00   13.319   105.07
6900.00   13.235   104.93
7000.00   13.146   104.78
7100.00   13.051   104.63
7200.00   12.951   104.48
7300.00   12.847   104.33
7400.00   12.737   104.18
7500.00   12.623   104.02
7600.00   12.504   103.86
7700.00   12.381   103.69
7800.00   12.253   103.53
7900.00   12.121   103.36
8000.00   11.984   103.18
8100.00   11.844   103.00
8200.00   11.699   102.82
8300.00   11.550   102.63
8400.00   11.398   102.44
8500.00   11.241   102.24
8600.00   11.081   102.04
8700.00   10.918   101.83
8800.00   10.750   101.61
8900.00   10.580   101.39
9000.00   10.406   101.16
9100.00   10.228   100.92
9200.00   10.047   100.68
9300.00    9.863   100.42
9400.00    9.676   100.16
9500.00    9.486    99.88
9600.00    9.293    99.59
9700.00    9.098    99.29
9800.00    8.899    98.98
9900.00    8.698    98.65
10000.00    8.494    98.31
10100.00    8.287    97.95
10200.00    8.078    97.57
10300.00    7.867    97.17
10400.00    7.654    96.75
10500.00    7.438    96.31
10600.00    7.220    95.84
10700.00    7.001    95.33
10800.00    6.779    94.80
10900.00    6.556    94.23
11000.00    6.331    93.62
11100.00    6.105    92.96


Parsed GAIA Input Data
Click to expand/collapse the Gaia Input Data:
Star A - gaiadr3.gaia_source
solution_id = 1636148068921376768
designation = Gaia DR3 2175444507873336448
source_id = 2175444507873336448
random_index = 466617433
ref_epoch = 2016.0
ra = 319.9952327580466
ra_error = 0.03406608
dec = 52.9792005381274
dec_error = 0.033020902
parallax = 12.14230319104979
parallax_error = 0.037185837
parallax_over_error = 326.5303
pm = 60.937714
pmra = 8.67005658757622
pmra_error = 0.041866813
pmdec = 60.31778408316461
pmdec_error = 0.042342808
ra_dec_corr = -0.10303106
ra_parallax_corr = -0.105329715
ra_pmra_corr = -0.12015286
ra_pmdec_corr = -0.10446463
dec_parallax_corr = 0.050176337
dec_pmra_corr = -0.09884785
dec_pmdec_corr = -0.2725594
parallax_pmra_corr = -0.11886113
parallax_pmdec_corr = 0.016720539
pmra_pmdec_corr = -0.1185844
astrometric_n_obs_al = 359
astrometric_n_obs_ac = 359
astrometric_n_good_obs_al = 359
astrometric_n_bad_obs_al = 0
astrometric_gof_al = 29.547226
astrometric_chi2_al = 4339.963
astrometric_excess_noise = 0.4000803
astrometric_excess_noise_sig = 127.620094
astrometric_params_solved = 31
astrometric_primary_flag = false
nu_eff_used_in_astrometry = 1.5725358
astrometric_matched_transits = 41
visibility_periods_used = 25
astrometric_sigma5d_max = 0.0618263
matched_transits = 61
new_matched_transits = 21
matched_transits_removed = 3
ipd_gof_harmonic_amplitude = 0.011302684
ipd_gof_harmonic_phase = 44.334892
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 2.2945728
duplicated_source = false
phot_g_n_obs = 481
phot_g_mean_flux = 18731480.017316185
phot_g_mean_flux_error = 2984.3198
phot_g_mean_flux_over_error = 6276.633
phot_g_mean_mag = 7.5059366
phot_bp_n_obs = 50
phot_bp_mean_flux = 10370858.649044748
phot_bp_mean_flux_error = 3722.222
phot_bp_mean_flux_over_error = 2786.2012
phot_bp_mean_mag = 7.7990055
phot_rp_n_obs = 49
phot_rp_mean_flux = 12186293.691332035
phot_rp_mean_flux_error = 4717.425
phot_rp_mean_flux_over_error = 2583.2512
phot_rp_mean_mag = 7.0332165
phot_bp_rp_excess_factor = 1.2042376
phot_bp_n_contaminated_transits = 0
phot_bp_n_blended_transits = 2
phot_rp_n_contaminated_transits = 0
phot_rp_n_blended_transits = 2
phot_proc_mode = 0
bp_rp = 0.76578903
bp_g = 0.2930689
g_rp = 0.47272015
radial_velocity = 30.730658
radial_velocity_error = 0.22144958
rv_method_used = 1
rv_nb_transits = 32
rv_nb_deblended_transits = 0
rv_visibility_periods_used = 22
rv_expected_sig_to_noise = 499.41147
rv_renormalised_gof = 15.388414
rv_chisq_pvalue = 0.0
rv_time_duration = 1010.3371
rv_amplitude_robust = 2.9228058
rv_template_teff = 5750.0
rv_template_logg = 3.5
rv_template_fe_h = -0.75
rv_atm_param_origin = 444
grvs_mag = 6.8455563
grvs_mag_error = 0.028934365
grvs_mag_nb_transits = 32
phot_variable_flag = NOT_AVAILABLE
l = 94.22053516451525
b = 2.3245424707626143
ecl_lon = 355.34761972747873
ecl_lat = 62.4364831479495
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 = true
in_andromeda_survey = false
classprob_dsc_combmod_quasar = 1.0964923e-13
classprob_dsc_combmod_galaxy = 5.4769237e-13
classprob_dsc_combmod_star = 0.9992449
teff_gspphot = 5886.691
teff_gspphot_lower = 5847.528
teff_gspphot_upper = 5935.464
logg_gspphot = 3.7113
logg_gspphot_lower = 3.6992
logg_gspphot_upper = 3.7189
mh_gspphot = -0.9804
mh_gspphot_lower = -1.0227
mh_gspphot_upper = -0.9323
distance_gspphot = 83.0102
distance_gspphot_lower = 82.2591
distance_gspphot_upper = 83.8896
azero_gspphot = 0.0477
azero_gspphot_lower = 0.0248
azero_gspphot_upper = 0.0771
ag_gspphot = 0.0405
ag_gspphot_lower = 0.0209
ag_gspphot_upper = 0.0655
ebpminrp_gspphot = 0.022
ebpminrp_gspphot_lower = 0.0114
ebpminrp_gspphot_upper = 0.0356
libname_gspphot = PHOENIX
    Star B - gaiadr3.gaia_source
solution_id = 1636148068921376768
designation = Gaia DR3 2175444507873336832
source_id = 2175444507873336832
random_index = 377535375
ref_epoch = 2016.0
ra = 319.9981152786361
ra_error = 0.0146815805
dec = 52.97841853439001
dec_error = 0.013444704
parallax = 12.14303096136538
parallax_error = 0.01579736
parallax_over_error = 768.67474
pm = 57.105927
pmra = 6.576066711490725
pmra_error = 0.01835948
pmdec = 56.72602858382962
pmdec_error = 0.017308304
ra_dec_corr = -0.12836353
ra_parallax_corr = -0.013535791
ra_pmra_corr = 0.024324277
ra_pmdec_corr = -0.15624177
dec_parallax_corr = 0.11981773
dec_pmra_corr = -0.16185081
dec_pmdec_corr = -0.14332817
parallax_pmra_corr = -0.062522255
parallax_pmdec_corr = -0.043336153
pmra_pmdec_corr = -0.094042875
astrometric_n_obs_al = 351
astrometric_n_obs_ac = 351
astrometric_n_good_obs_al = 348
astrometric_n_bad_obs_al = 3
astrometric_gof_al = -1.937307
astrometric_chi2_al = 647.7717
astrometric_excess_noise = 0.10743712
astrometric_excess_noise_sig = 7.990694
astrometric_params_solved = 31
astrometric_primary_flag = false
nu_eff_used_in_astrometry = 1.521942
astrometric_matched_transits = 40
visibility_periods_used = 24
astrometric_sigma5d_max = 0.026069555
matched_transits = 58
new_matched_transits = 18
matched_transits_removed = 3
ipd_gof_harmonic_amplitude = 0.012100201
ipd_gof_harmonic_phase = 44.01123
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 0.92600536
duplicated_source = false
phot_g_n_obs = 480
phot_g_mean_flux = 16581504.463116895
phot_g_mean_flux_error = 2136.0872
phot_g_mean_flux_over_error = 7762.56
phot_g_mean_mag = 7.638307
phot_bp_n_obs = 50
phot_bp_mean_flux = 8299615.244137454
phot_bp_mean_flux_error = 3381.1252
phot_bp_mean_flux_over_error = 2454.6902
phot_bp_mean_mag = 8.040897
phot_rp_n_obs = 48
phot_rp_mean_flux = 11918745.325938014
phot_rp_mean_flux_error = 5104.1934
phot_rp_mean_flux_over_error = 2335.0889
phot_rp_mean_mag = 7.057319
phot_bp_rp_excess_factor = 1.2193321
phot_bp_n_contaminated_transits = 3
phot_bp_n_blended_transits = 0
phot_rp_n_contaminated_transits = 3
phot_rp_n_blended_transits = 0
phot_proc_mode = 0
bp_rp = 0.9835782
bp_g = 0.40259027
g_rp = 0.58098793
radial_velocity = 29.530214
radial_velocity_error = 0.12764731
rv_method_used = 1
rv_nb_transits = 31
rv_nb_deblended_transits = 0
rv_visibility_periods_used = 21
rv_expected_sig_to_noise = 483.68732
rv_renormalised_gof = 1.4806653
rv_chisq_pvalue = 0.008116421
rv_time_duration = 1010.3371
rv_amplitude_robust = 1.2605801
rv_template_teff = 5000.0
rv_template_logg = 3.5
rv_template_fe_h = -0.5
rv_atm_param_origin = 444
vbroad = 5.9268694
vbroad_error = 1.08604
vbroad_nb_transits = 24
grvs_mag = 6.8357377
grvs_mag_error = 0.0052716425
grvs_mag_nb_transits = 31
phot_variable_flag = NOT_AVAILABLE
l = 94.22120250889472
b = 2.322759438206087
ecl_lon = 355.3493297693742
ecl_lat = 62.43475177721445
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 = true
in_andromeda_survey = false
classprob_dsc_combmod_quasar = 1.0202512e-11
classprob_dsc_combmod_galaxy = 5.0961034e-11
classprob_dsc_combmod_star = 1.0000273e-06
teff_gspphot = 5253.601
teff_gspphot_lower = 5237.7075
teff_gspphot_upper = 5263.4883
logg_gspphot = 3.5821
logg_gspphot_lower = 3.5723
logg_gspphot_upper = 3.5904
mh_gspphot = -0.3966
mh_gspphot_lower = -0.4288
mh_gspphot_upper = -0.3859
distance_gspphot = 82.4018
distance_gspphot_lower = 82.1616
distance_gspphot_upper = 82.9647
azero_gspphot = 0.1115
azero_gspphot_lower = 0.099
azero_gspphot_upper = 0.1203
ag_gspphot = 0.0911
ag_gspphot_lower = 0.0809
ag_gspphot_upper = 0.0983
ebpminrp_gspphot = 0.0489
ebpminrp_gspphot_lower = 0.0435
ebpminrp_gspphot_upper = 0.0528
libname_gspphot = MARCS
- gaiadr3.astrophysical_parameters
solution_id = 1636148068921376768
source_id = 2175444507873336448
classprob_dsc_combmod_quasar = 1.0964923e-13
classprob_dsc_combmod_galaxy = 5.4769237e-13
classprob_dsc_combmod_star = 0.9992449
classprob_dsc_combmod_whitedwarf = 2.1522794e-12
classprob_dsc_combmod_binarystar = 0.0007551012
classprob_dsc_specmod_quasar = 0.0
classprob_dsc_specmod_galaxy = 0.0
classprob_dsc_specmod_star = 0.9297402
classprob_dsc_specmod_whitedwarf = 0.0
classprob_dsc_specmod_binarystar = 0.07025983
classprob_dsc_allosmod_quasar = 0.0
classprob_dsc_allosmod_galaxy = 0.0
classprob_dsc_allosmod_star = 1.0
teff_gspphot = 5886.691
teff_gspphot_lower = 5847.528
teff_gspphot_upper = 5935.464
logg_gspphot = 3.7113
logg_gspphot_lower = 3.6992
logg_gspphot_upper = 3.7189
mh_gspphot = -0.9804
mh_gspphot_lower = -1.0227
mh_gspphot_upper = -0.9323
distance_gspphot = 83.0102
distance_gspphot_lower = 82.2591
distance_gspphot_upper = 83.8896
azero_gspphot = 0.0477
azero_gspphot_lower = 0.0248
azero_gspphot_upper = 0.0771
ag_gspphot = 0.0405
ag_gspphot_lower = 0.0209
ag_gspphot_upper = 0.0655
abp_gspphot = 0.0507
abp_gspphot_lower = 0.0263
abp_gspphot_upper = 0.0819
arp_gspphot = 0.0287
arp_gspphot_lower = 0.0148
arp_gspphot_upper = 0.0463
ebpminrp_gspphot = 0.022
ebpminrp_gspphot_lower = 0.0114
ebpminrp_gspphot_upper = 0.0356
mg_gspphot = 2.8593
mg_gspphot_lower = 2.8109
mg_gspphot_upper = 2.8902
radius_gspphot = 2.2563
radius_gspphot_lower = 2.2403
radius_gspphot_upper = 2.27
logposterior_gspphot = -4153.0923
mcmcaccept_gspphot = 0.20510972
libname_gspphot = PHOENIX
teff_gspspec = 5640.0
teff_gspspec_lower = 5572.0
teff_gspspec_upper = 5734.0
logg_gspspec = 3.74
logg_gspspec_lower = 3.71
logg_gspspec_upper = 3.77
mh_gspspec = -0.82
mh_gspspec_lower = -0.84
mh_gspspec_upper = -0.56
alphafe_gspspec = 0.36
alphafe_gspspec_lower = 0.3
alphafe_gspspec_upper = 0.39
fem_gspspec = 0.05
fem_gspspec_lower = -0.12
fem_gspspec_upper = 0.15
fem_gspspec_nlines = 8
fem_gspspec_linescatter = 0.11
sife_gspspec = 0.15
sife_gspspec_lower = -0.08
sife_gspspec_upper = 0.19
sife_gspspec_nlines = 2
sife_gspspec_linescatter = 0.06
cafe_gspspec = 0.34
cafe_gspspec_lower = 0.27
cafe_gspspec_upper = 0.36
cafe_gspspec_nlines = 6
cafe_gspspec_linescatter = 0.03
tife_gspspec = 0.25
tife_gspspec_lower = 0.1
tife_gspspec_upper = 0.42
tife_gspspec_nlines = 1
tife_gspspec_linescatter = 0.0
mgfe_gspspec = 0.41
mgfe_gspspec_lower = 0.23
mgfe_gspspec_upper = 0.64
mgfe_gspspec_nlines = 1
mgfe_gspspec_linescatter = 0.0
sfe_gspspec = 0.44
sfe_gspspec_lower = 0.29
sfe_gspspec_upper = 0.59
sfe_gspspec_nlines = 2
sfe_gspspec_linescatter = 0.03
nife_gspspec = 0.31
nife_gspspec_lower = 0.19
nife_gspspec_upper = 0.46
nife_gspspec_nlines = 1
nife_gspspec_linescatter = 0.0
dibqf_gspspec = -1
flags_gspspec = 00000010000009922000100119900990199999999
logchisq_gspspec = -4.36444
ew_espels_halpha = 0.072781384
ew_espels_halpha_uncertainty = 0.018283715
ew_espels_halpha_flag = 0
ew_espels_halpha_model = 0.133673
flags_esphs = 92
spectraltype_esphs = G
activityindex_espcs = 0.037946384
activityindex_espcs_uncertainty = 0.00024114335
activityindex_espcs_input = M1
radius_flame = 2.2234175
radius_flame_lower = 2.1757464
radius_flame_upper = 2.2722852
lum_flame = 5.3528986
lum_flame_lower = 5.270184
lum_flame_upper = 5.4504685
mass_flame = 1.2922021
mass_flame_lower = 1.2520993
mass_flame_upper = 1.3323286
age_flame = 4.1499968
age_flame_lower = 3.6830513
age_flame_upper = 4.614592
flags_flame = 00
evolstage_flame = 432
gravredshift_flame = 0.26704383
gravredshift_flame_lower = 0.2615605
gravredshift_flame_upper = 0.27255166
bc_flame = 0.02798495
mh_msc = 0.052323096
mh_msc_upper = 0.5
mh_msc_lower = -1.0
azero_msc = 0.5335132
azero_msc_upper = 1.5894291
azero_msc_lower = 0.0
distance_msc = 81.464966
distance_msc_upper = 147.11156
distance_msc_lower = 61.490677
teff_msc1 = 6327.084
teff_msc1_upper = 8000.0
teff_msc1_lower = 3000.0
teff_msc2 = 5259.0513
teff_msc2_upper = 8000.0
teff_msc2_lower = 3000.0
logg_msc1 = 4.292963
logg_msc1_upper = 5.2
logg_msc1_lower = 2.0
logg_msc2 = 4.1480904
logg_msc2_upper = 5.2
logg_msc2_lower = 3.4632092
ag_msc = 0.44118
ag_msc_upper = 1.3295842
ag_msc_lower = 0.0
logposterior_msc = -431.53992
mcmcaccept_msc = 0.105584726
mcmcdrift_msc = 0.005321267
flags_msc = 0
    - gaiadr3.astrophysical_parameters
solution_id = 1636148068921376768
source_id = 2175444507873336832
classprob_dsc_combmod_quasar = 1.0202512e-11
classprob_dsc_combmod_galaxy = 5.0961034e-11
classprob_dsc_combmod_star = 1.0000273e-06
classprob_dsc_combmod_whitedwarf = 2.0026275e-10
classprob_dsc_combmod_binarystar = 0.999999
classprob_dsc_specmod_quasar = 0.0
classprob_dsc_specmod_galaxy = 0.0
classprob_dsc_specmod_star = 0.0
classprob_dsc_specmod_whitedwarf = 0.0
classprob_dsc_specmod_binarystar = 1.0
classprob_dsc_allosmod_quasar = 0.0
classprob_dsc_allosmod_galaxy = 0.0
classprob_dsc_allosmod_star = 1.0
teff_gspphot = 5253.601
teff_gspphot_lower = 5237.7075
teff_gspphot_upper = 5263.4883
logg_gspphot = 3.5821
logg_gspphot_lower = 3.5723
logg_gspphot_upper = 3.5904
mh_gspphot = -0.3966
mh_gspphot_lower = -0.4288
mh_gspphot_upper = -0.3859
distance_gspphot = 82.4018
distance_gspphot_lower = 82.1616
distance_gspphot_upper = 82.9647
azero_gspphot = 0.1115
azero_gspphot_lower = 0.099
azero_gspphot_upper = 0.1203
ag_gspphot = 0.0911
ag_gspphot_lower = 0.0809
ag_gspphot_upper = 0.0983
abp_gspphot = 0.1154
abp_gspphot_lower = 0.1026
abp_gspphot_upper = 0.1245
arp_gspphot = 0.0665
arp_gspphot_lower = 0.059
arp_gspphot_upper = 0.0717
ebpminrp_gspphot = 0.0489
ebpminrp_gspphot_lower = 0.0435
ebpminrp_gspphot_upper = 0.0528
mg_gspphot = 2.9606
mg_gspphot_lower = 2.9427
mg_gspphot_upper = 2.9701
radius_gspphot = 2.7245
radius_gspphot_lower = 2.7132
radius_gspphot_upper = 2.7484
logposterior_gspphot = -4204.3535
mcmcaccept_gspphot = 0.17119122
libname_gspphot = MARCS
teff_gspspec = 5288.0
teff_gspspec_lower = 5277.0
teff_gspspec_upper = 5299.0
logg_gspspec = 3.49
logg_gspspec_lower = 3.47
logg_gspspec_upper = 3.56
mh_gspspec = -0.38
mh_gspspec_lower = -0.39
mh_gspspec_upper = -0.38
alphafe_gspspec = 0.12
alphafe_gspspec_lower = 0.11
alphafe_gspspec_upper = 0.13
fem_gspspec = -0.07
fem_gspspec_lower = -0.12
fem_gspspec_upper = -0.03
fem_gspspec_nlines = 8
fem_gspspec_linescatter = 0.07
sife_gspspec = -0.04
sife_gspspec_lower = -0.08
sife_gspspec_upper = 0.0
sife_gspspec_nlines = 3
sife_gspspec_linescatter = 0.12
cafe_gspspec = 0.11
cafe_gspspec_lower = 0.1
cafe_gspspec_upper = 0.12
cafe_gspspec_nlines = 7
cafe_gspspec_linescatter = 0.02
tife_gspspec = 0.15
tife_gspspec_lower = 0.09
tife_gspspec_upper = 0.23
tife_gspspec_nlines = 2
tife_gspspec_linescatter = 0.01
mgfe_gspspec = 0.1
mgfe_gspspec_lower = 0.01
mgfe_gspspec_upper = 0.19
mgfe_gspspec_nlines = 1
mgfe_gspspec_linescatter = 0.0
nfe_gspspec = -0.04
nfe_gspspec_lower = -0.11
nfe_gspspec_upper = 0.05
nfe_gspspec_nlines = 1
nfe_gspspec_linescatter = 0.0
nife_gspspec = -0.02
nife_gspspec_lower = -0.14
nife_gspspec_upper = 0.08
nife_gspspec_nlines = 1
nife_gspspec_linescatter = 0.0
dib_gspspec_lambda = 862.52014
dib_gspspec_lambda_uncertainty = 0.006056132
dibew_gspspec = 0.006
dibew_gspspec_uncertainty = 0.001
dibewnoise_gspspec_uncertainty = 0.0006
dibp0_gspspec = -0.0099
dibp2_gspspec = 0.2534
dibp2_gspspec_uncertainty = 0.0733
dibqf_gspspec = 5
flags_gspspec = 00000000000001010009900009900991099999995
logchisq_gspspec = -4.4895377
ew_espels_halpha = 0.032786526
ew_espels_halpha_uncertainty = 0.01575783
ew_espels_halpha_flag = 0
ew_espels_halpha_model = 0.061455
flags_esphs = 94
spectraltype_esphs = K
radius_flame = 2.707569
radius_flame_lower = 2.652602
radius_flame_upper = 2.7623055
lum_flame = 5.02598
lum_flame_lower = 4.990957
lum_flame_upper = 5.0556145
mass_flame = 1.3705508
mass_flame_lower = 1.3295093
mass_flame_upper = 1.4105513
age_flame = 3.5935652
age_flame_lower = 3.2051213
age_flame_upper = 3.9902256
flags_flame = 00
evolstage_flame = 488
gravredshift_flame = 0.24061996
gravredshift_flame_lower = 0.23761564
gravredshift_flame_upper = 0.24412176
bc_flame = 0.013713486
mh_msc = 0.26764852
mh_msc_upper = 0.3351496
mh_msc_lower = 0.2229343
azero_msc = 0.9169114
azero_msc_upper = 1.014461
azero_msc_lower = 0.82333094
distance_msc = 82.06825
distance_msc_upper = 84.08661
distance_msc_lower = 80.21629
teff_msc1 = 6283.016
teff_msc1_upper = 6353.387
teff_msc1_lower = 6207.767
teff_msc2 = 4710.454
teff_msc2_upper = 4826.372
teff_msc2_lower = 4602.7197
logg_msc1 = 4.45572
logg_msc1_upper = 4.5417604
logg_msc1_lower = 4.3695936
logg_msc2 = 3.9467704
logg_msc2_upper = 3.9874852
logg_msc2_lower = 3.9065254
ag_msc = 0.7286538
ag_msc_upper = 0.80253255
ag_msc_lower = 0.6530185
logposterior_msc = -404.15833
mcmcaccept_msc = 0.25059667
mcmcdrift_msc = 0.39314017
flags_msc = 0




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 08:41:08 +0200



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