Double Star Calculator - Results


Discoverer & Number:    STF 2376 AB
Gaia Source ID - Star A          : 2089741218621952256     Simbad
Gaia Source ID - Star B          : 2089741218621951232     Simbad
Observation Epoch : J2025.491 / 2025-06-29 Angular Separation : 22.313 ± 0.0003 arcsec Position Angle : 62.94 ± 0.0008 degree
Star A/B Epoch : J2016.000 / J2016.000 Angular Separation : 22.313 < 0.0001 arcsec Position Angle : 62.92 ± 0.0001 degree Projected Separation : 7172.96 au Spatial Separation : 1.49 ± 11.60 ly Spatial Separation : 94526.85 ± 733471.66 au Parallax Significance (RI) : 0.13 σ ΔProper Motion Angle : 3.44 ± 0.16 degree ΔTotal Proper Motion : 0.48 ± 0.03 mas/yr ΔTangential Velocity : 0.71 ± 0.21 km/s ΔRadial Velocity : 1.14 ± 3.82 km/s ΔSpeed (scalar) : 1.33 ± 3.02 km/s ΔRelative Velocity (3D) : 1.73 ± 2.52 km/s

Aladin Lite Sky Atlas



Star A
Gaia Source ID                   : 2089741218621952256           VizieR
Epoch : J2016.000 Right Ascension (RA) : 18h 43m 42.28s Declination (Dec) : 30° 24' 17.17" Distance : 321.24 ± 2.88 pc Distance : 1047.75 ± 9.40 ly Magnitude (G-band) : 8.64 mag Absolute Magnitude : 0.79 ± 0.02 mag Stellar Extinction : 0.32 ± <0.01 mag Spectral Type (BP/RP) : B Bolometric correction : -1.40 mag Luminosity : 137.93 + 2.52 / − 2.47 L☉ Log(Luminosity) : 2.13964 Effective temperature (Teff) : 10090.24 +16.16 / -16.14 K Log(Teff) : 4.00390 Mass estimation : 3.47 M☉ RUWE : 1.49 Position Angle of Proper Motion : 31.12 ± 0.13 degree Total Proper Motion : 12.26 ± 0.03 mas/yr Tangential Velocity : 18.67 ± 0.17 km/s Radial Velocity (Gaia) : -24.03 ± 2.98 km/s Space Velocity : 30.43 ± 2.36 km/s

Star A - Selected astrophysical parameters
DSC-Combmod binary star          :       0.00
DSC-Specmod binary star          :       0.04
Radius from GSP-Phot Aeneas      :       2.25  ±   0.02          R☉
Spectral type from ESP-ELS       :          A
Radius of the star from FLAME    :       2.32  ±   0.05          R☉
Bolometric correction            :      -0.32                    mag
Luminosity of the star (FLAME)   :      50.19  ±   0.83          L☉
Mass of the star from FLAME      :       2.50  ±   0.04          M☉
FLAME quality indicators         :         00
  Quality                        :       OK
  Source                         :       Parallax used
Evolutionary stage from FLAME    :        201      Main Sequence (early)

Star A - Double Star Quality Metrics
Parallax over error :    111.428 : very good
RUWE                :      1.490 : poor astrometric fit, (possible double)
Non Single Star     :            : Single Star
Duplicated source   :      false : single source
G magnitude         :      8.642 : G > 3 mag, photometry reliable
Excess noise        :      0.262 : Good fit
  Significance      :     91.964 :   Minor noise, likely negligible
BP-RP excess factor :      1.160 : photometry consistent
Visibility periods  :         27 : high, indicates well observed star
IPD multi-peak frac :         0% : single peak detected
IDP GoF harmonic amp:      0.016 : unobtrusive (single star source)


Star B
Gaia Source ID                   : 2089741218621951232           VizieR
Epoch : J2016.000 Right Ascension (RA) : 18h 43m 43.81s Declination (Dec) : 30° 24' 27.33" Distance : 321.70 ± 2.10 pc Distance : 1049.24 ± 6.85 ly Magnitude (G-band) : 9.30 mag Absolute Magnitude : 1.76 ± 0.01 mag Stellar Extinction : N/A Spectral Type (BP/RP) : B Bolometric correction : -1.40 mag Luminosity : 56.33 + 0.74 / − 0.73 L☉ Log(Luminosity) : 1.75076 Teff (bp_rp) : 15000.00 K Log(Teff) : 4.17609 Mass estimation : 2.77 M☉ RUWE : 1.14 Position Angle of Proper Motion : 34.57 ± 0.10 degree Total Proper Motion : 11.78 ± 0.02 mas/yr Tangential Velocity : 17.96 ± 0.12 km/s Radial Velocity (Gaia) : -22.89 ± 2.39 km/s Space Velocity : 29.09 ± 1.88 km/s

Star B - Selected astrophysical parameters
DSC-Combmod binary star          :       0.00
DSC-Specmod binary star          :       0.05
Spectral type from ESP-ELS       :          A

Star B - Double Star Quality Metrics
Parallax over error :    153.246 : very good
RUWE                :      1.140 : good astrometric fit (single star)
Non Single Star     :            : Single Star
Duplicated source   :      false : single source
G magnitude         :      9.300 : G > 3 mag, photometry reliable
Excess noise        :      0.191 : Good fit
  Significance      :     48.240 :   Minor noise, likely negligible
BP-RP excess factor :      1.157 : photometry consistent
Visibility periods  :         27 : high, indicates well observed star
IPD multi-peak frac :         0% : single peak detected
IDP GoF harmonic amp:      0.011 : 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 :        0.81     (Strong)
COMOV: Distance Evidence Indicator :        0.27     (Weak)
Co-Moving Total Evidence Indicator :        0.46     (Moderate)

rPM/COMOV Agreement                :                 (Low)

Binarity

Separation, Sigma and Reliability  :
===================================
Projected Separation               :     7172.96     au
Spatial Separation                 :    94526.85     au
  1-Sigma Range                    : [   7172.96,  827998.50] au
  Significance (RI)                :        0.13     σ
  Note: 3D distance not significantly resolved


Proper Motion and Velocity         :
===================================
rPM (Proper Motion Ratio)          :        0.07     (CPM)
ΔRelative Velocity (3D)            :        1.74  ±  2.52   km/s


UWLE for Wide Binaries (3D)        :
===================================
WBS: Velocity Evidence Indicator   :        0.05     (Unlikely)
WBS: Distance Evidence Indicator   :        0.03     (Unlikely)
Binarity Total Evidence Indicator  :        0.04     (Unlikely)


UWLE for Wide Binaries (2D)        :
===================================
WBS: Velocity Evidence Indicator   :        0.19     (Weak)
WBS: Distance Evidence Indicator   :        0.03     (Unlikely)
Binarity Total Evidence Indicator  :        0.07     (Unlikely)
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) :  1.49 : Medium
RUWE probability for a binary system (Star B) :  1.14 : 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     22.320    0.003      62.658    0.009
1901.0     22.319    0.003      62.660    0.009
1902.0     22.319    0.003      62.663    0.009
1903.0     22.319    0.003      62.665    0.009
1904.0     22.319    0.003      62.667    0.009
1905.0     22.319    0.003      62.669    0.009
1906.0     22.319    0.003      62.672    0.009
1907.0     22.319    0.003      62.674    0.009
1908.0     22.319    0.003      62.676    0.009
1909.0     22.319    0.003      62.678    0.009
1910.0     22.319    0.003      62.680    0.008
1911.0     22.319    0.003      62.683    0.008
1912.0     22.319    0.003      62.685    0.008
1913.0     22.319    0.003      62.687    0.008
1914.0     22.319    0.003      62.689    0.008
1915.0     22.319    0.003      62.692    0.008
1916.0     22.319    0.003      62.694    0.008
1917.0     22.319    0.003      62.696    0.008
1918.0     22.318    0.003      62.698    0.008
1919.0     22.318    0.003      62.700    0.008
1920.0     22.318    0.003      62.703    0.008
1921.0     22.318    0.003      62.705    0.008
1922.0     22.318    0.003      62.707    0.007
1923.0     22.318    0.003      62.709    0.007
1924.0     22.318    0.003      62.712    0.007
1925.0     22.318    0.003      62.714    0.007
1926.0     22.318    0.003      62.716    0.007
1927.0     22.318    0.003      62.718    0.007
1928.0     22.318    0.003      62.720    0.007
1929.0     22.318    0.003      62.723    0.007
1930.0     22.318    0.003      62.725    0.007
1931.0     22.318    0.003      62.727    0.007
1932.0     22.318    0.003      62.729    0.007
1933.0     22.318    0.002      62.732    0.007
1934.0     22.318    0.002      62.734    0.007
1935.0     22.318    0.002      62.736    0.006
1936.0     22.317    0.002      62.738    0.006
1937.0     22.317    0.002      62.740    0.006
1938.0     22.317    0.002      62.743    0.006
1939.0     22.317    0.002      62.745    0.006
1940.0     22.317    0.002      62.747    0.006
1941.0     22.317    0.002      62.749    0.006
1942.0     22.317    0.002      62.752    0.006
1943.0     22.317    0.002      62.754    0.006
1944.0     22.317    0.002      62.756    0.006
1945.0     22.317    0.002      62.758    0.006
1946.0     22.317    0.002      62.760    0.006
1947.0     22.317    0.002      62.763    0.005
1948.0     22.317    0.002      62.765    0.005
1949.0     22.317    0.002      62.767    0.005
1950.0     22.317    0.002      62.769    0.005
1951.0     22.317    0.002      62.772    0.005
1952.0     22.317    0.002      62.774    0.005
1953.0     22.317    0.002      62.776    0.005
1954.0     22.316    0.002      62.778    0.005
1955.0     22.316    0.002      62.780    0.005
1956.0     22.316    0.002      62.783    0.005
1957.0     22.316    0.002      62.785    0.005
1958.0     22.316    0.002      62.787    0.005
1959.0     22.316    0.002      62.789    0.005
1960.0     22.316    0.002      62.792    0.004
1961.0     22.316    0.002      62.794    0.004
1962.0     22.316    0.002      62.796    0.004
1963.0     22.316    0.002      62.798    0.004
1964.0     22.316    0.002      62.800    0.004
1965.0     22.316    0.002      62.803    0.004
1966.0     22.316    0.001      62.805    0.004
1967.0     22.316    0.001      62.807    0.004
1968.0     22.316    0.001      62.809    0.004
1969.0     22.316    0.001      62.812    0.004
1970.0     22.316    0.001      62.814    0.004
1971.0     22.316    0.001      62.816    0.004
1972.0     22.315    0.001      62.818    0.004
1973.0     22.315    0.001      62.820    0.003
1974.0     22.315    0.001      62.823    0.003
1975.0     22.315    0.001      62.825    0.003
1976.0     22.315    0.001      62.827    0.003
1977.0     22.315    0.001      62.829    0.003
1978.0     22.315    0.001      62.832    0.003
1979.0     22.315    0.001      62.834    0.003
1980.0     22.315    0.001      62.836    0.003
1981.0     22.315    0.001      62.838    0.003
1982.0     22.315    0.001      62.840    0.003
1983.0     22.315    0.001      62.843    0.003
1984.0     22.315    0.001      62.845    0.003
1985.0     22.315    0.001      62.847    0.002
1986.0     22.315    0.001      62.849    0.002
1987.0     22.315    0.001      62.852    0.002
1988.0     22.315    0.001      62.854    0.002
1989.0     22.315    0.001      62.856    0.002
1990.0     22.314    0.001      62.858    0.002
1991.0     22.314    0.001      62.860    0.002
1992.0     22.314    0.001      62.863    0.002
1993.0     22.314    0.001      62.865    0.002
1994.0     22.314    0.001      62.867    0.002
1995.0     22.314    0.001      62.869    0.002
1996.0     22.314    0.001      62.872    0.002
1997.0     22.314    0.001      62.874    0.002
1998.0     22.314    0.001      62.876    0.001
1999.0     22.314    0.001      62.878    0.001
2000.0     22.314    0.000      62.880    0.001
2001.0     22.314    0.000      62.883    0.001
2002.0     22.314    0.000      62.885    0.001
2003.0     22.314    0.000      62.887    0.001
2004.0     22.314    0.000      62.889    0.001
2005.0     22.314    0.000      62.892    0.001
2006.0     22.314    0.000      62.894    0.001
2007.0     22.314    0.000      62.896    0.001
2008.0     22.313    0.000      62.898    0.001
2009.0     22.313    0.000      62.900    0.001
2010.0     22.313    0.000      62.903    0.000
2011.0     22.313    0.000      62.905    0.000
2012.0     22.313    0.000      62.907    0.000
2013.0     22.313    0.000      62.909    0.000
2014.0     22.313    0.000      62.912    0.000
2015.0     22.313    0.000      62.914    0.000
2016.0     22.313    0.000      62.916    0.000
2017.0     22.313    0.000      62.918    0.000
2018.0     22.313    0.000      62.920    0.000
2019.0     22.313    0.000      62.923    0.000
2020.0     22.313    0.000      62.925    0.000
2021.0     22.313    0.000      62.927    0.000
2022.0     22.313    0.000      62.929    0.000
2023.0     22.313    0.000      62.932    0.001
2024.0     22.313    0.000      62.934    0.001
2025.0     22.313    0.000      62.936    0.001
2026.0     22.313    0.000      62.938    0.001
2027.0     22.312    0.000      62.940    0.001
2028.0     22.312    0.000      62.943    0.001
2029.0     22.312    0.000      62.945    0.001
2030.0     22.312    0.000      62.947    0.001
2031.0     22.312    0.000      62.949    0.001
2032.0     22.312    0.000      62.952    0.001
2033.0     22.312    0.001      62.954    0.001
2034.0     22.312    0.001      62.956    0.001
2035.0     22.312    0.001      62.958    0.002
2036.0     22.312    0.001      62.960    0.002
2037.0     22.312    0.001      62.963    0.002
2038.0     22.312    0.001      62.965    0.002
2039.0     22.312    0.001      62.967    0.002
2040.0     22.312    0.001      62.969    0.002
2041.0     22.312    0.001      62.972    0.002
2042.0     22.312    0.001      62.974    0.002
2043.0     22.312    0.001      62.976    0.002
2044.0     22.312    0.001      62.978    0.002
2045.0     22.311    0.001      62.981    0.002
2046.0     22.311    0.001      62.983    0.002
2047.0     22.311    0.001      62.985    0.002
2048.0     22.311    0.001      62.987    0.003
2049.0     22.311    0.001      62.989    0.003
2050.0     22.311    0.001      62.992    0.003
2051.0     22.311    0.001      62.994    0.003
2052.0     22.311    0.001      62.996    0.003
2053.0     22.311    0.001      62.998    0.003
2054.0     22.311    0.001      63.001    0.003
2055.0     22.311    0.001      63.003    0.003
2056.0     22.311    0.001      63.005    0.003
2057.0     22.311    0.001      63.007    0.003
2058.0     22.311    0.001      63.009    0.003
2059.0     22.311    0.001      63.012    0.003
2060.0     22.311    0.001      63.014    0.004
2061.0     22.311    0.001      63.016    0.004
2062.0     22.311    0.001      63.018    0.004
2063.0     22.311    0.001      63.021    0.004
2064.0     22.310    0.001      63.023    0.004
2065.0     22.310    0.001      63.025    0.004
2066.0     22.310    0.001      63.027    0.004
2067.0     22.310    0.002      63.029    0.004
2068.0     22.310    0.002      63.032    0.004
2069.0     22.310    0.002      63.034    0.004
2070.0     22.310    0.002      63.036    0.004
2071.0     22.310    0.002      63.038    0.004
2072.0     22.310    0.002      63.041    0.004
2073.0     22.310    0.002      63.043    0.005
2074.0     22.310    0.002      63.045    0.005
2075.0     22.310    0.002      63.047    0.005
2076.0     22.310    0.002      63.049    0.005
2077.0     22.310    0.002      63.052    0.005
2078.0     22.310    0.002      63.054    0.005
2079.0     22.310    0.002      63.056    0.005
2080.0     22.310    0.002      63.058    0.005
2081.0     22.310    0.002      63.061    0.005
2082.0     22.310    0.002      63.063    0.005
2083.0     22.309    0.002      63.065    0.005
2084.0     22.309    0.002      63.067    0.005
2085.0     22.309    0.002      63.069    0.005
2086.0     22.309    0.002      63.072    0.006
2087.0     22.309    0.002      63.074    0.006
2088.0     22.309    0.002      63.076    0.006
2089.0     22.309    0.002      63.078    0.006
2090.0     22.309    0.002      63.081    0.006
2091.0     22.309    0.002      63.083    0.006
2092.0     22.309    0.002      63.085    0.006
2093.0     22.309    0.002      63.087    0.006
2094.0     22.309    0.002      63.089    0.006
2095.0     22.309    0.002      63.092    0.006
2096.0     22.309    0.002      63.094    0.006
2097.0     22.309    0.002      63.096    0.006
2098.0     22.309    0.002      63.098    0.007
2099.0     22.309    0.002      63.101    0.007
2100.0     22.309    0.003      63.103    0.007


Measurements for STF 2376 AB
 
WDS ID      Discovr     Comp  #    Sep      PA       Epoch      Obs  Telescope     Camera    Note
-------------------------------------------------------------------------------------------------
18437+3024  STF 2376    AB    1    22,39"   --       B2025.493  HWI  120/900 APO   ASI678MM  CAL
18437+3024  STF 2376    AB    2    22,40"   --       B2025.493  HWI  120/900 APO   ASI678MM  CAL
18437+3024  STF 2376    AB    3    22,37"   --       B2025.493  HWI  120/900 APO   ASI678MM  CAL

-- Image of STF-2376-AB-taken with Equinox 120/900 APO --


WDS record for STF 2376 AB
wds_id                       : 18437+3024
discoverer_code              : STF
discoverer_number            : 2376
discoverer_components        : AB
date_first                   : 1830
date_last                    : 2015
num_of_obs                   : 41
pa_first                     : 64
pa_last                      : 63
sep_first                    : 22.3
sep_last                     : 22.3
mag_primary                  : 8.66
mag_secondary                : 9.31
spectral_type                : A0
primary_proper_motion_RA     : 7
primary_proper_motion_DEC    : 7
secondary_proper_motion_RA   : 9
secondary_proper_motion_DEC  : 8
dm_number                    : +30 3281
notes                        : 
precise_coordinate           : 184342.26+302416.9
                             : 18:43:42.26 +30:24:16.9



Parsed GAIA Input Data
Click to expand/collapse the Gaia Input Data:
Star A - gaiadr3.gaia_source
solution_id = 1636148068921376768
designation = Gaia DR3 2089741218621952256
source_id = 2089741218621952256
random_index = 157717662.0
ref_epoch = 2016.0
ra = 280.92615426517983
ra_error = 0.019612633
dec = 30.404770230131604
dec_error = 0.022932751
parallax = 3.112928816231403
parallax_error = 0.027936801
parallax_over_error = 111.427536
pm = 12.259768
pmra = 6.336781525005312
pmra_error = 0.02661083
pmdec = 10.495099300806745
pmdec_error = 0.027575262
ra_dec_corr = -0.04885751
ra_parallax_corr = -0.0061905845
ra_pmra_corr = 0.072060004
ra_pmdec_corr = -0.04751667
dec_parallax_corr = 0.07095367
dec_pmra_corr = -0.067537814
dec_pmdec_corr = -0.13823031
parallax_pmra_corr = -0.14381011
parallax_pmdec_corr = -0.16368721
pmra_pmdec_corr = -0.012915733
astrometric_n_obs_al = 394
astrometric_n_obs_ac = 394
astrometric_n_good_obs_al = 391
astrometric_n_bad_obs_al = 3
astrometric_gof_al = 12.672987
astrometric_chi2_al = 3493.1208
astrometric_excess_noise = 0.26188716
astrometric_excess_noise_sig = 91.96422
astrometric_params_solved = 31
astrometric_primary_flag = false
nu_eff_used_in_astrometry = 1.720761
astrometric_matched_transits = 45
visibility_periods_used = 27
astrometric_sigma5d_max = 0.038511753
matched_transits = 49
new_matched_transits = 19
matched_transits_removed = 4
ipd_gof_harmonic_amplitude = 0.015609374
ipd_gof_harmonic_phase = 16.8382
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 1.4882149
duplicated_source = false
phot_g_n_obs = 390
phot_g_mean_flux = 6576125.533668873
phot_g_mean_flux_error = 1725.302
phot_g_mean_flux_over_error = 3811.5793
phot_g_mean_mag = 8.642442
phot_bp_n_obs = 47
phot_bp_mean_flux = 4625662.192699673
phot_bp_mean_flux_error = 1533.5575
phot_bp_mean_flux_over_error = 3016.2952
phot_bp_mean_mag = 8.675608
phot_rp_n_obs = 46
phot_rp_mean_flux = 3005049.9641535017
phot_rp_mean_flux_error = 863.7738
phot_rp_mean_flux_over_error = 3478.9778
phot_rp_mean_mag = 8.553267
phot_bp_rp_excess_factor = 1.1603659
phot_bp_n_contaminated_transits = 0
phot_bp_n_blended_transits = 3
phot_rp_n_contaminated_transits = 0
phot_rp_n_blended_transits = 9
phot_proc_mode = 0
bp_rp = 0.122341156
bp_g = 0.03316593
g_rp = 0.089175224
radial_velocity = -24.026123
radial_velocity_error = 2.984409
rv_method_used = 1
rv_nb_transits = 10
rv_nb_deblended_transits = 1
rv_visibility_periods_used = 9
rv_expected_sig_to_noise = 125.80329
rv_renormalised_gof = 1.6852028
rv_chisq_pvalue = 0.08922602
rv_time_duration = 858.04376
rv_amplitude_robust = 25.526108
rv_template_teff = 8500.0
rv_template_logg = 4.5
rv_template_fe_h = 0.25
rv_atm_param_origin = 555
vbroad = 237.68774
vbroad_error = 24.295994
vbroad_nb_transits = 6
grvs_mag = 8.480363
grvs_mag_error = 0.018247325
grvs_mag_nb_transits = 6
rvs_spec_sig_to_noise = 144.42877
phot_variable_flag = NOT_AVAILABLE
l = 59.824125561693066
b = 14.872664245545653
ecl_lon = 285.8540243352321
ecl_lat = 53.244372113724836
in_qso_candidates = false
in_galaxy_candidates = false
non_single_star = 0
has_xp_continuous = false
has_xp_sampled = false
has_rvs = false
has_epoch_photometry = false
has_epoch_rv = false
has_mcmc_gspphot = false
has_mcmc_msc = false
in_andromeda_survey = false
classprob_dsc_combmod_quasar = 1.06220195e-13
classprob_dsc_combmod_galaxy = 5.305646e-13
classprob_dsc_combmod_star = 0.99958473
teff_gspphot = 10090.239
teff_gspphot_lower = 10074.1
teff_gspphot_upper = 10106.395
logg_gspphot = 4.1158
logg_gspphot_lower = 4.1095
logg_gspphot_upper = 4.1213
mh_gspphot = 0.0497
mh_gspphot_lower = -0.0653
mh_gspphot_upper = 0.08
distance_gspphot = 316.6482
distance_gspphot_lower = 313.0064
distance_gspphot_upper = 319.453
azero_gspphot = 0.3315
azero_gspphot_lower = 0.3285
azero_gspphot_upper = 0.3338
ag_gspphot = 0.3174
ag_gspphot_lower = 0.3145
ag_gspphot_upper = 0.3196
ebpminrp_gspphot = 0.169
ebpminrp_gspphot_lower = 0.1674
ebpminrp_gspphot_upper = 0.1702
libname_gspphot = A
    Star B - gaiadr3.gaia_source
solution_id = 1636148068921376768
designation = Gaia DR3 2089741218621951232
source_id = 2089741218621951232
random_index = 1248497759.0
ref_epoch = 2016.0
ra = 280.93255279307306
ra_error = 0.014174335
dec = 30.40759202708578
dec_error = 0.01726258
parallax = 3.1085070366403444
parallax_error = 0.020284433
parallax_over_error = 153.24594
pm = 11.779242
pmra = 6.6831608840005625
pmra_error = 0.019465135
pmdec = 9.699788586034849
pmdec_error = 0.020839479
ra_dec_corr = -0.05081591
ra_parallax_corr = -0.042410914
ra_pmra_corr = 0.045767687
ra_pmdec_corr = 0.008144575
dec_parallax_corr = 0.10799644
dec_pmra_corr = -0.023240767
dec_pmdec_corr = -0.20235555
parallax_pmra_corr = -0.18040332
parallax_pmdec_corr = -0.12583761
pmra_pmdec_corr = 0.0030304766
astrometric_n_obs_al = 422
astrometric_n_obs_ac = 422
astrometric_n_good_obs_al = 420
astrometric_n_bad_obs_al = 2
astrometric_gof_al = 4.0827775
astrometric_chi2_al = 2275.7039
astrometric_excess_noise = 0.1910864
astrometric_excess_noise_sig = 48.2399
astrometric_params_solved = 31
astrometric_primary_flag = false
nu_eff_used_in_astrometry = 1.7284203
astrometric_matched_transits = 48
visibility_periods_used = 27
astrometric_sigma5d_max = 0.02921562
matched_transits = 52
new_matched_transits = 20
matched_transits_removed = 0
ipd_gof_harmonic_amplitude = 0.01125709
ipd_gof_harmonic_phase = 22.652685
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 1.1441714
duplicated_source = false
phot_g_n_obs = 414
phot_g_mean_flux = 3587677.9900745503
phot_g_mean_flux_error = 813.7741
phot_g_mean_flux_over_error = 4408.6904
phot_g_mean_mag = 9.300333
phot_bp_n_obs = 52
phot_bp_mean_flux = 2546113.4106980013
phot_bp_mean_flux_error = 870.36847
phot_bp_mean_flux_over_error = 2925.3281
phot_bp_mean_mag = 9.323848
phot_rp_n_obs = 50
phot_rp_mean_flux = 1605179.087135832
phot_rp_mean_flux_error = 462.09122
phot_rp_mean_flux_over_error = 3473.7278
phot_rp_mean_mag = 9.234087
phot_bp_rp_excess_factor = 1.1570973
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 = 0.08976078
bp_g = 0.023514748
g_rp = 0.06624603
radial_velocity = -22.886639
radial_velocity_error = 2.3916228
rv_method_used = 1
rv_nb_transits = 16
rv_nb_deblended_transits = 4
rv_visibility_periods_used = 13
rv_expected_sig_to_noise = 113.22324
rv_renormalised_gof = 0.54870725
rv_chisq_pvalue = 0.40428644
rv_time_duration = 879.12384
rv_amplitude_robust = 25.393599
rv_template_teff = 8500.0
rv_template_logg = 4.5
rv_template_fe_h = 0.25
rv_atm_param_origin = 555
vbroad = 191.06076
vbroad_error = 17.1482
vbroad_nb_transits = 12
grvs_mag = 9.192201
grvs_mag_error = 0.0068593863
grvs_mag_nb_transits = 12
rvs_spec_sig_to_noise = 129.34172
phot_variable_flag = NOT_AVAILABLE
l = 59.8290460951508
b = 14.86868944516726
ecl_lon = 285.8637673495765
ecl_lat = 53.246475887781656
in_qso_candidates = false
in_galaxy_candidates = false
non_single_star = 0
has_xp_continuous = false
has_xp_sampled = false
has_rvs = false
has_epoch_photometry = false
has_epoch_rv = false
has_mcmc_gspphot = false
has_mcmc_msc = false
in_andromeda_survey = false
classprob_dsc_combmod_quasar = 1.0692099e-13
classprob_dsc_combmod_galaxy = 5.340649e-13
classprob_dsc_combmod_star = 0.9995154
- gaiadr3.astrophysical_parameters
solution_id = 1636148068921376768
source_id = 2089741218621952256
classprob_dsc_combmod_quasar = 1.06220195e-13
classprob_dsc_combmod_galaxy = 5.305646e-13
classprob_dsc_combmod_star = 0.99958473
classprob_dsc_combmod_whitedwarf = 7.1544908e-09
classprob_dsc_combmod_binarystar = 0.00041524926
classprob_dsc_specmod_quasar = 0.0
classprob_dsc_specmod_galaxy = 0.0
classprob_dsc_specmod_star = 0.96008074
classprob_dsc_specmod_whitedwarf = 3.4304565e-05
classprob_dsc_specmod_binarystar = 0.039884962
classprob_dsc_allosmod_quasar = 0.0
classprob_dsc_allosmod_galaxy = 0.0
classprob_dsc_allosmod_star = 1.0
teff_gspphot = 10090.239
teff_gspphot_lower = 10074.1
teff_gspphot_upper = 10106.395
logg_gspphot = 4.1158
logg_gspphot_lower = 4.1095
logg_gspphot_upper = 4.1213
mh_gspphot = 0.0497
mh_gspphot_lower = -0.0653
mh_gspphot_upper = 0.08
distance_gspphot = 316.6482
distance_gspphot_lower = 313.0064
distance_gspphot_upper = 319.453
azero_gspphot = 0.3315
azero_gspphot_lower = 0.3285
azero_gspphot_upper = 0.3338
ag_gspphot = 0.3174
ag_gspphot_lower = 0.3145
ag_gspphot_upper = 0.3196
abp_gspphot = 0.3729
abp_gspphot_lower = 0.3696
abp_gspphot_upper = 0.3756
arp_gspphot = 0.204
arp_gspphot_lower = 0.2021
arp_gspphot_upper = 0.2054
ebpminrp_gspphot = 0.169
ebpminrp_gspphot_lower = 0.1674
ebpminrp_gspphot_upper = 0.1702
mg_gspphot = 0.8069
mg_gspphot_lower = 0.7871
mg_gspphot_upper = 0.8323
radius_gspphot = 2.2546
radius_gspphot_lower = 2.2304
radius_gspphot_upper = 2.2736
logposterior_gspphot = -4100.7974
mcmcaccept_gspphot = 0.49068967
libname_gspphot = A
ew_espels_halpha = 0.45803374
ew_espels_halpha_uncertainty = 0.016592981
ew_espels_halpha_flag = 0
ew_espels_halpha_model = 0.497452
azero_esphs = 0.05112531
azero_esphs_uncertainty = 0.01929628
ag_esphs = 0.04860721
ag_esphs_uncertainty = 0.018345872
ebpminrp_esphs = 0.025778603
ebpminrp_esphs_uncertainty = 0.009729646
teff_esphs = 9011.507
teff_esphs_uncertainty = 63.976784
logg_esphs = 4.1209555
logg_esphs_uncertainty = 0.02539118
vsini_esphs = 183.06682
vsini_esphs_uncertainty = 6.243473
flags_esphs = 02
spectraltype_esphs = A
radius_flame = 2.318297
radius_flame_lower = 2.2684035
radius_flame_upper = 2.368801
lum_flame = 50.186348
lum_flame_lower = 49.388542
lum_flame_upper = 51.053207
mass_flame = 2.4964173
mass_flame_lower = 2.4556172
mass_flame_upper = 2.5373724
age_flame = 0.31233522
age_flame_lower = 0.24791536
age_flame_upper = 0.37673277
flags_flame = 00
evolstage_flame = 201
gravredshift_flame = 0.6988966
gravredshift_flame_lower = 0.6849748
gravredshift_flame_upper = 0.70445126
bc_flame = -0.31626016
mh_msc = -0.10029616
mh_msc_upper = -0.09803536
mh_msc_lower = -0.102129824
azero_msc = 0.09926139
azero_msc_upper = 0.10457574
azero_msc_lower = 0.094610885
distance_msc = 351.60638
distance_msc_upper = 355.09424
distance_msc_lower = 346.65674
teff_msc1 = 7599.5996
teff_msc1_upper = 7608.1934
teff_msc1_lower = 7591.924
teff_msc2 = 7596.023
teff_msc2_upper = 7616.355
teff_msc2_lower = 7578.489
logg_msc1 = 3.8932862
logg_msc1_upper = 3.912529
logg_msc1_lower = 3.8828554
logg_msc2 = 3.89895
logg_msc2_upper = 3.9064817
logg_msc2_lower = 3.8947206
ag_msc = 0.09048178
ag_msc_upper = 0.095277496
ag_msc_lower = 0.08621953
logposterior_msc = -148626.23
mcmcaccept_msc = 0.3009308
mcmcdrift_msc = 0.48911148
flags_msc = 1
    - gaiadr3.astrophysical_parameters
solution_id = 1636148068921376768
source_id = 2089741218621951232
classprob_dsc_combmod_quasar = 1.0692099e-13
classprob_dsc_combmod_galaxy = 5.340649e-13
classprob_dsc_combmod_star = 0.9995154
classprob_dsc_combmod_whitedwarf = 8.254303e-09
classprob_dsc_combmod_binarystar = 0.00048457595
classprob_dsc_specmod_quasar = 0.0
classprob_dsc_specmod_galaxy = 0.0
classprob_dsc_specmod_star = 0.95372194
classprob_dsc_specmod_whitedwarf = 3.932003e-05
classprob_dsc_specmod_binarystar = 0.046238776
classprob_dsc_allosmod_quasar = 0.0
classprob_dsc_allosmod_galaxy = 0.0
classprob_dsc_allosmod_star = 1.0
ew_espels_halpha = 0.5247732
ew_espels_halpha_uncertainty = 0.014233661
ew_espels_halpha_flag = 0
ew_espels_halpha_model = 0.545061
azero_esphs = 0.11770371
azero_esphs_uncertainty = 0.016559515
ag_esphs = 0.11262962
ag_esphs_uncertainty = 0.01574037
ebpminrp_esphs = 0.059804443
ebpminrp_esphs_uncertainty = 0.0083708335
teff_esphs = 9404.624
teff_esphs_uncertainty = 65.72989
logg_esphs = 4.0428214
logg_esphs_uncertainty = 0.022717714
vsini_esphs = 165.70229
vsini_esphs_uncertainty = 5.721546
flags_esphs = 02
spectraltype_esphs = A
mh_msc = -0.10083982
mh_msc_upper = -0.093760505
mh_msc_lower = -0.11383356
azero_msc = 0.09881599
azero_msc_upper = 0.11010422
azero_msc_lower = 0.08945002
distance_msc = 486.30804
distance_msc_upper = 511.24182
distance_msc_lower = 457.77655
teff_msc1 = 7572.222
teff_msc1_upper = 7716.69
teff_msc1_lower = 7460.733
teff_msc2 = 7598.319
teff_msc2_upper = 7622.264
teff_msc2_lower = 7560.3696
logg_msc1 = 3.8596272
logg_msc1_upper = 3.9769697
logg_msc1_lower = 3.7760353
logg_msc2 = 3.8911633
logg_msc2_upper = 3.9128118
logg_msc2_lower = 3.8455372
ag_msc = 0.09004481
ag_msc_upper = 0.1007095
ag_msc_lower = 0.081103444
logposterior_msc = -241167.92
mcmcaccept_msc = 0.2852506
mcmcdrift_msc = 1.7231613
flags_msc = 1




Observation Date:


Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. 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 1.0 ($Rev: 2309 $)
Report created: 2026-05-10 17:43:08 +0200



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