Double Star Calculator - Results


STF 1692 AB - Astrometric and kinematic properties
Gaia Source ID - Star A          : 1517698716348324992     Simbad
Gaia Source ID - Star B          : 1517698613271954304     Simbad
Observation Epoch : J2025.321 / 2025-04-28 Angular Separation : 19.173 ± 0.0040 arcsec Position Angle : 229.23 ± 0.0117 degree
Star A/B Epoch : J2016.000 / J2016.000 Angular Separation : 19.214 ± 0.0003 arcsec Position Angle : 229.09 ± 0.0009 degree Projected Separation : 607 au Spatial Separation : 2.11 ± 0.55 pc Spatial Separation : 6.87 ± 1.80 ly Parallax Significance : 3.59 σ 3D Space Velocity Angle : 6.23 ± 0.38 degree ΔProper Motion Angle : 1.50 ± 0.09 degree ΔTotal Proper Motion : 1.41 ± 0.46 mas/yr ΔTangential Velocity : 2.62 ± 0.63 km/s ΔRadial Velocity : 3.66 ± 0.23 km/s ΔSpeed (scalar) : 2.38 ± 0.63 km/s ΔRelative Velocity (3D) : 4.60 ± 0.36 km/s

Aladin Lite Sky Atlas



Star A - Stellar Data
Gaia Source ID                   : 1517698716348324992           VizieR
Epoch : J2016.000 Right Ascension (RA) : 12h 56m 1.35s Declination (Dec) : 38° 19' 7.04" Distance : 30.56 ± 0.55 pc Distance : 99.67 ± 1.78 ly Magnitude (G-band) : 2.90 mag Absolute Magnitude : 0.48 ± 0.04 mag Stellar Extinction : N/A Spectral Type (BP/RP) : B Bolometric correction : -1.34 mag Luminosity : 174.00 + 6.33 / − 6.11 L☉ Log(Luminosity) : 2.24054 Teff (bp_rp) : 15000.00 K Log(Teff) : 4.17609 Mass estimation : 3.68 M☉ RUWE : 8.42 Position Angle of Proper Motion : 283.25 ± 0.09 degree Total Proper Motion : 240.17 ± 0.46 mas/yr Tangential Velocity : 34.79 ± 0.62 km/s Radial Velocity (Simbad) : -4.10 ± 0.20 km/s Bibcode : 2006AstL...32..759G Space Velocity : 35.03 ± 0.62 km/s

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

Star A - Double Star Quality Metrics
Parallax over error :     55.991 : very good
RUWE                :      8.420 : poor astrometric fit, (possible double)
Non Single Star     :            : Single Star
Duplicated source   :      false : single source
G magnitude         :      2.904 : G < 3 mag, possible saturation effects
Excess noise        :      2.204 : Poor fit
  Significance      :   6629.326 :   Possible binary or jitter
BP-RP excess factor :      0.983 : photometry inconsistent
Visibility periods  :         10 : high, indicates well observed star
IPD multi-peak frac :         2% : mulitple peaks detected (possible double)
IDP GoF harmonic amp:      0.063 : unobtrusive (single star source)


Star B - Stellar Data
Gaia Source ID                   : 1517698613271954304           VizieR
Epoch : J2016.000 Right Ascension (RA) : 12h 56m 0.11s Declination (Dec) : 38° 18' 54.45" Distance : 32.67 ± 0.07 pc Distance : 106.54 ± 0.23 ly Magnitude (G-band) : 5.54 mag Absolute Magnitude : 2.97 ± <0.01 mag Stellar Extinction : 0.00 ± <0.01 mag Spectral Type (BP/RP) : A Bolometric correction : 0.00 mag Luminosity : 5.10 + 0.02 / − 0.02 L☉ Log(Luminosity) : 0.70769 Effective temperature (Teff) : 6908.97 + 5.99 / - 3.95 K Log(Teff) : 3.83941 Mass estimation : 1.53 M☉ RUWE : 1.07 Position Angle of Proper Motion : 284.75 ± 0.01 degree Total Proper Motion : 241.57 ± 0.04 mas/yr Tangential Velocity : 37.41 ± 0.08 km/s Radial Velocity (Gaia) : -0.44 ± 0.12 km/s Space Velocity : 37.41 ± 0.08 km/s

Star B - Selected astrophysical parameters
DSC-Combmod binary star          :       1.00
DSC-Specmod binary star          :       1.00
Radius from GSP-Phot Aeneas      :       1.54  ±   0.02          R☉
Spectral type from ESP-ELS       :          F
Radius of the star from FLAME    :       1.55  ±   0.03          R☉
Bolometric correction            :       0.04                    mag
Luminosity of the star (FLAME)   :       4.90  ±   0.04          L☉
Mass of the star from FLAME      :       1.42  ±   0.04          M☉
FLAME quality indicators         :         00
  Quality                        :       OK
  Source                         :       Parallax used
Evolutionary stage from FLAME    :        191      Main Sequence (early)

Star B - Double Star Quality Metrics
Parallax over error :    459.766 : very good
RUWE                :      1.070 : good astrometric fit (single star)
Non Single Star     :            : Single Star
Duplicated source   :       true : possible close pair or data artifact
G magnitude         :      5.541 : G > 3 mag, photometry reliable
Excess noise        :      0.522 : Good fit
  Significance      :    697.782 :   Minor noise, likely negligible
BP-RP excess factor :      1.191 : photometry consistent
Visibility periods  :         20 : high, indicates well observed star
IPD multi-peak frac :         1% : mulitple peaks detected (possible double)
IDP GoF harmonic amp:      0.032 : 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)          :        0.03     (CPM)

Co-Moving

UWLE for Co-Moving Pairs (3D)      :
===================================
COMOV: Velocity Evidence Indicator :        0.43     (Moderate)
COMOV: Distance Evidence Indicator :        0.03     (Unlikely)
Co-Moving Total Evidence Indicator :        0.11     (Weak)

rPM/COMOV Agreement                :                 (Discrepant)

Binarity

Separation, Sigma and Reliability  :
===================================
Projected Separation               :         607     au
Spatial Separation                 :        2.11  ±     0.55  pc
  1-Sigma Range                    : [      1.56,       2.66] pc
  Significance                     :        3.59     σ
  Note: 3D distance is plausible but has sig. uncertainty.

3D spatial distance probabilities : =================================== P(D-3D <= 1215 au) : 0.0 % (2.0 * D-projected) P(D-3D <= 2500 au) : 0.0 % (Wide binary) P(D-3D <= 10000 au) : 0.0 % (Wide binary) P(D-3D <= 20000 au) : 0.0 % (Very wide binary) P(D-3D <= 50000 au) : 0.0 % (Extremely wide) P(D-3D <= 206265 au) : 2.2 % (Jacobi radius)

Proper Motion and Velocity         :
===================================
rPM (Proper Motion Ratio)          :        0.03     (CPM)
ΔRelative Velocity (3D)            :        4.60  ±  0.36   km/s

UWLE for Wide Binaries (3D)        :
===================================
WBS: Velocity Evidence Indicator   :        0.00     (Unlikely)
WBS: Distance Evidence Indicator   :        0.00     (Unlikely)
Binarity Total Evidence Indicator  :        0.00     (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) :  8.42 : Very high
RUWE probability for a binary system (Star B) :  1.07 : 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     19.729    0.050     227.485    0.142
1901.0     19.724    0.049     227.498    0.140
1902.0     19.720    0.049     227.512    0.139
1903.0     19.715    0.048     227.525    0.138
1904.0     19.711    0.048     227.539    0.137
1905.0     19.706    0.048     227.552    0.136
1906.0     19.702    0.047     227.566    0.134
1907.0     19.697    0.047     227.579    0.133
1908.0     19.693    0.046     227.593    0.132
1909.0     19.688    0.046     227.606    0.131
1910.0     19.684    0.045     227.620    0.130
1911.0     19.679    0.045     227.633    0.128
1912.0     19.675    0.045     227.647    0.127
1913.0     19.670    0.044     227.660    0.126
1914.0     19.666    0.044     227.674    0.125
1915.0     19.661    0.043     227.688    0.124
1916.0     19.657    0.043     227.701    0.122
1917.0     19.653    0.042     227.715    0.121
1918.0     19.648    0.042     227.728    0.120
1919.0     19.644    0.042     227.742    0.119
1920.0     19.639    0.041     227.756    0.118
1921.0     19.635    0.041     227.769    0.116
1922.0     19.630    0.040     227.783    0.115
1923.0     19.626    0.040     227.797    0.114
1924.0     19.621    0.039     227.810    0.113
1925.0     19.617    0.039     227.824    0.112
1926.0     19.612    0.039     227.838    0.110
1927.0     19.608    0.038     227.851    0.109
1928.0     19.603    0.038     227.865    0.108
1929.0     19.599    0.037     227.879    0.107
1930.0     19.594    0.037     227.892    0.106
1931.0     19.590    0.036     227.906    0.104
1932.0     19.585    0.036     227.920    0.103
1933.0     19.581    0.036     227.933    0.102
1934.0     19.576    0.035     227.947    0.101
1935.0     19.572    0.035     227.961    0.099
1936.0     19.567    0.034     227.974    0.098
1937.0     19.563    0.034     227.988    0.097
1938.0     19.559    0.033     228.002    0.096
1939.0     19.554    0.033     228.016    0.095
1940.0     19.550    0.033     228.029    0.093
1941.0     19.545    0.032     228.043    0.092
1942.0     19.541    0.032     228.057    0.091
1943.0     19.536    0.031     228.071    0.090
1944.0     19.532    0.031     228.084    0.089
1945.0     19.527    0.030     228.098    0.087
1946.0     19.523    0.030     228.112    0.086
1947.0     19.518    0.030     228.126    0.085
1948.0     19.514    0.029     228.139    0.084
1949.0     19.510    0.029     228.153    0.082
1950.0     19.505    0.028     228.167    0.081
1951.0     19.501    0.028     228.181    0.080
1952.0     19.496    0.027     228.195    0.079
1953.0     19.492    0.027     228.209    0.078
1954.0     19.487    0.027     228.222    0.076
1955.0     19.483    0.026     228.236    0.075
1956.0     19.478    0.026     228.250    0.074
1957.0     19.474    0.025     228.264    0.073
1958.0     19.470    0.025     228.278    0.072
1959.0     19.465    0.024     228.292    0.070
1960.0     19.461    0.024     228.305    0.069
1961.0     19.456    0.024     228.319    0.068
1962.0     19.452    0.023     228.333    0.067
1963.0     19.447    0.023     228.347    0.065
1964.0     19.443    0.022     228.361    0.064
1965.0     19.439    0.022     228.375    0.063
1966.0     19.434    0.021     228.389    0.062
1967.0     19.430    0.021     228.403    0.061
1968.0     19.425    0.021     228.417    0.059
1969.0     19.421    0.020     228.431    0.058
1970.0     19.416    0.020     228.445    0.057
1971.0     19.412    0.019     228.458    0.056
1972.0     19.408    0.019     228.472    0.054
1973.0     19.403    0.018     228.486    0.053
1974.0     19.399    0.018     228.500    0.052
1975.0     19.394    0.018     228.514    0.051
1976.0     19.390    0.017     228.528    0.049
1977.0     19.385    0.017     228.542    0.048
1978.0     19.381    0.016     228.556    0.047
1979.0     19.377    0.016     228.570    0.046
1980.0     19.372    0.015     228.584    0.045
1981.0     19.368    0.015     228.598    0.043
1982.0     19.363    0.015     228.612    0.042
1983.0     19.359    0.014     228.626    0.041
1984.0     19.355    0.014     228.640    0.040
1985.0     19.350    0.013     228.654    0.038
1986.0     19.346    0.013     228.668    0.037
1987.0     19.341    0.012     228.682    0.036
1988.0     19.337    0.012     228.696    0.035
1989.0     19.333    0.012     228.710    0.033
1990.0     19.328    0.011     228.724    0.032
1991.0     19.324    0.011     228.739    0.031
1992.0     19.319    0.010     228.753    0.030
1993.0     19.315    0.010     228.767    0.029
1994.0     19.311    0.009     228.781    0.027
1995.0     19.306    0.009     228.795    0.026
1996.0     19.302    0.009     228.809    0.025
1997.0     19.297    0.008     228.823    0.024
1998.0     19.293    0.008     228.837    0.022
1999.0     19.289    0.007     228.851    0.021
2000.0     19.284    0.007     228.865    0.020
2001.0     19.280    0.006     228.880    0.019
2002.0     19.275    0.006     228.894    0.017
2003.0     19.271    0.006     228.908    0.016
2004.0     19.267    0.005     228.922    0.015
2005.0     19.262    0.005     228.936    0.014
2006.0     19.258    0.004     228.950    0.012
2007.0     19.253    0.004     228.964    0.011
2008.0     19.249    0.003     228.979    0.010
2009.0     19.245    0.003     228.993    0.009
2010.0     19.240    0.003     229.007    0.008
2011.0     19.236    0.002     229.021    0.006
2012.0     19.232    0.002     229.035    0.005
2013.0     19.227    0.001     229.050    0.004
2014.0     19.223    0.001     229.064    0.003
2015.0     19.218    0.001     229.078    0.002
2016.0     19.214    0.000     229.092    0.001
2017.0     19.210    0.001     229.106    0.002
2018.0     19.205    0.001     229.121    0.003
2019.0     19.201    0.001     229.135    0.004
2020.0     19.197    0.002     229.149    0.005
2021.0     19.192    0.002     229.163    0.006
2022.0     19.188    0.003     229.178    0.008
2023.0     19.184    0.003     229.192    0.009
2024.0     19.179    0.003     229.206    0.010
2025.0     19.175    0.004     229.221    0.011
2026.0     19.170    0.004     229.235    0.013
2027.0     19.166    0.005     229.249    0.014
2028.0     19.162    0.005     229.263    0.015
2029.0     19.157    0.006     229.278    0.016
2030.0     19.153    0.006     229.292    0.018
2031.0     19.149    0.006     229.306    0.019
2032.0     19.144    0.007     229.321    0.020
2033.0     19.140    0.007     229.335    0.021
2034.0     19.136    0.008     229.349    0.023
2035.0     19.131    0.008     229.364    0.024
2036.0     19.127    0.009     229.378    0.025
2037.0     19.123    0.009     229.392    0.026
2038.0     19.118    0.009     229.407    0.028
2039.0     19.114    0.010     229.421    0.029
2040.0     19.110    0.010     229.436    0.030
2041.0     19.105    0.011     229.450    0.031
2042.0     19.101    0.011     229.464    0.033
2043.0     19.096    0.012     229.479    0.034
2044.0     19.092    0.012     229.493    0.035
2045.0     19.088    0.012     229.508    0.036
2046.0     19.083    0.013     229.522    0.038
2047.0     19.079    0.013     229.536    0.039
2048.0     19.075    0.014     229.551    0.040
2049.0     19.070    0.014     229.565    0.041
2050.0     19.066    0.015     229.580    0.043
2051.0     19.062    0.015     229.594    0.044
2052.0     19.057    0.016     229.609    0.045
2053.0     19.053    0.016     229.623    0.046
2054.0     19.049    0.016     229.638    0.048
2055.0     19.045    0.017     229.652    0.049
2056.0     19.040    0.017     229.667    0.050
2057.0     19.036    0.018     229.681    0.051
2058.0     19.032    0.018     229.696    0.053
2059.0     19.027    0.019     229.710    0.054
2060.0     19.023    0.019     229.725    0.055
2061.0     19.019    0.019     229.739    0.057
2062.0     19.014    0.020     229.754    0.058
2063.0     19.010    0.020     229.768    0.059
2064.0     19.006    0.021     229.783    0.060
2065.0     19.001    0.021     229.797    0.062
2066.0     18.997    0.022     229.812    0.063
2067.0     18.993    0.022     229.826    0.064
2068.0     18.988    0.022     229.841    0.065
2069.0     18.984    0.023     229.856    0.067
2070.0     18.980    0.023     229.870    0.068
2071.0     18.975    0.024     229.885    0.069
2072.0     18.971    0.024     229.899    0.070
2073.0     18.967    0.025     229.914    0.072
2074.0     18.963    0.025     229.929    0.073
2075.0     18.958    0.025     229.943    0.074
2076.0     18.954    0.026     229.958    0.076
2077.0     18.950    0.026     229.972    0.077
2078.0     18.945    0.027     229.987    0.078
2079.0     18.941    0.027     230.002    0.079
2080.0     18.937    0.028     230.016    0.081
2081.0     18.932    0.028     230.031    0.082
2082.0     18.928    0.028     230.046    0.083
2083.0     18.924    0.029     230.060    0.084
2084.0     18.920    0.029     230.075    0.086
2085.0     18.915    0.030     230.090    0.087
2086.0     18.911    0.030     230.104    0.088
2087.0     18.907    0.031     230.119    0.090
2088.0     18.902    0.031     230.134    0.091
2089.0     18.898    0.032     230.148    0.092
2090.0     18.894    0.032     230.163    0.093
2091.0     18.890    0.032     230.178    0.095
2092.0     18.885    0.033     230.193    0.096
2093.0     18.881    0.033     230.207    0.097
2094.0     18.877    0.034     230.222    0.099
2095.0     18.873    0.034     230.237    0.100
2096.0     18.868    0.035     230.252    0.101
2097.0     18.864    0.035     230.266    0.102
2098.0     18.860    0.035     230.281    0.104
2099.0     18.855    0.036     230.296    0.105
2100.0     18.851    0.036     230.311    0.106




Measurements for STF 1692 AB

WDS ID      Discovr     Comp  #    Sep      PA       Epoch      Obs  Telescope     Camera    Note
-------------------------------------------------------------------------------------------------
12560+3819  STF 1692    AB    1    19.20"   --       B2024.356  HWI  120/900 APO   ASI120MC  CAL   
12560+3819  STF 1692    AB    1    19.22"   229.5°   B2025.325  HWI  120/900 APO   ASI678MM   
12560+3819  STF 1692    AB    1    19.23"   --       B2025.334  HWI  120/900 APO   ASI678MM   
12560+3819  STF 1692    AB    1    19.21"   --       B2026.311  HWI  120/900 APO   ASI678MM  CAL 

-- Image of STF-1692-AB-taken with Equinox 120/900 APO --


WDS record for STF 1692 AB
wds_id                       : 12560+3819
discoverer_code              : STF
discoverer_number            : 1692
discoverer_components        : AB
date_first                   : 1777
date_last                    : 2023
num_of_obs                   : 174
pa_first                     : 234
pa_last                      : 229
sep_first                    : 22.0
sep_last                     : 19.2
mag_primary                  : 2.85
mag_secondary                : 5.52
spectral_type                : A0pSiEuHg
primary_proper_motion_RA     : -233
primary_proper_motion_DEC    : 55
secondary_proper_motion_RA   : -204
secondary_proper_motion_DEC  : 88
dm_number                    : +39 2580
notes                        : NV
precise_coordinate           : 125601.67+381906.2
                             : 12:56:01.67 +38:19:06.2

WDS Notes:
----------
N: Notes found in WDSNOT MEMO of WDS
V: Proper motion or other technique: physical



Parsed GAIA Input Data
Click to expand/collapse the Gaia Input Data:
Star A - gaiadr3.gaia_source
solution_id = 1636148068921376768
designation = Gaia DR3 1517698716348324992
source_id = 1517698716348324992
random_index = 133495980
ref_epoch = 2016.0
ra = 194.0056156711975
ra_error = 0.43033287
dec = 38.31862104268021
dec_error = 0.23943666
parallax = 32.722737796620656
parallax_error = 0.58442336
parallax_over_error = 55.991497
pm = 240.16624
pmra = -233.7755313345049
pmra_error = 0.4612079
pmdec = 55.034770927991445
pmdec_error = 0.3792501
ra_dec_corr = 0.46039551
ra_parallax_corr = 0.13552962
ra_pmra_corr = 0.0725741
ra_pmdec_corr = 0.40048948
dec_parallax_corr = -0.08027661
dec_pmra_corr = 0.29261643
dec_pmdec_corr = 0.29571703
parallax_pmra_corr = 0.072551884
parallax_pmdec_corr = 0.36969757
pmra_pmdec_corr = 0.37257186
astrometric_n_obs_al = 166
astrometric_n_obs_ac = 166
astrometric_n_good_obs_al = 164
astrometric_n_bad_obs_al = 2
astrometric_gof_al = 83.71074
astrometric_chi2_al = 123165.586
astrometric_excess_noise = 2.2037115
astrometric_excess_noise_sig = 6629.326
astrometric_params_solved = 95
astrometric_primary_flag = false
pseudocolour = 1.5090696
pseudocolour_error = 0.07484576
ra_pseudocolour_corr = -0.015876897
dec_pseudocolour_corr = 0.075214475
parallax_pseudocolour_corr = -0.30874202
pmra_pseudocolour_corr = 0.0093024345
pmdec_pseudocolour_corr = -0.2755152
astrometric_matched_transits = 20
visibility_periods_used = 10
astrometric_sigma5d_max = 0.71918434
matched_transits = 27
new_matched_transits = 7
matched_transits_removed = 17
ipd_gof_harmonic_amplitude = 0.063150674
ipd_gof_harmonic_phase = 134.2528
ipd_frac_multi_peak = 2
ipd_frac_odd_win = 0
ruwe = 8.417524
duplicated_source = false
phot_g_n_obs = 204
phot_g_mean_flux = 1297745247.7068043
phot_g_mean_flux_error = 3506653.5
phot_g_mean_flux_over_error = 370.08084
phot_g_mean_mag = 2.9043932
phot_bp_n_obs = 27
phot_bp_mean_flux = 745767561.5048203
phot_bp_mean_flux_error = 20664676.0
phot_bp_mean_flux_over_error = 36.089005
phot_bp_mean_mag = 3.1570334
phot_rp_n_obs = 26
phot_rp_mean_flux = 529794548.80981463
phot_rp_mean_flux_error = 2237386.8
phot_rp_mean_flux_over_error = 236.79167
phot_rp_mean_mag = 2.9376268
phot_bp_rp_excess_factor = 0.9829064
phot_bp_n_contaminated_transits = 0
phot_bp_n_blended_transits = 27
phot_rp_n_contaminated_transits = 0
phot_rp_n_blended_transits = 26
phot_proc_mode = 0
bp_rp = 0.2194066
bp_g = 0.25264025
g_rp = -0.033233643
phot_variable_flag = NOT_AVAILABLE
l = 118.31044312141636
b = 78.7684591979679
ecl_lon = 174.56540651304704
ecl_lat = 40.120728602612786
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 = false
has_mcmc_msc = true
in_andromeda_survey = false
classprob_dsc_combmod_quasar = 6.085834e-08
classprob_dsc_combmod_galaxy = 7.6642614e-08
classprob_dsc_combmod_star = 0.99999964
radial_velocity = -4.1
radial_velocity_error = 0.2
    Star B - gaiadr3.gaia_source
solution_id = 1636148068921376768
designation = Gaia DR3 1517698613271954304
source_id = 1517698613271954304
random_index = 500186382
ref_epoch = 2016.0
ra = 194.00047466298005
ra_error = 0.043122727
dec = 38.31512587327974
dec_error = 0.02663485
parallax = 30.612116282835892
parallax_error = 0.06658188
parallax_over_error = 459.76645
pm = 241.57184
pmra = -233.6113674117316
pmra_error = 0.04315338
pmdec = 61.50352547005995
pmdec_error = 0.044282347
ra_dec_corr = 0.30555788
ra_parallax_corr = -0.2589151
ra_pmra_corr = -0.3432671
ra_pmdec_corr = 0.07812812
dec_parallax_corr = -0.061796214
dec_pmra_corr = -0.08244389
dec_pmdec_corr = 0.25102875
parallax_pmra_corr = 0.1002313
parallax_pmdec_corr = -0.24145195
pmra_pmdec_corr = 0.023405576
astrometric_n_obs_al = 735
astrometric_n_obs_ac = 735
astrometric_n_good_obs_al = 722
astrometric_n_bad_obs_al = 13
astrometric_gof_al = 2.7082167
astrometric_chi2_al = 30857.635
astrometric_excess_noise = 0.5218756
astrometric_excess_noise_sig = 697.7823
astrometric_params_solved = 95
astrometric_primary_flag = false
pseudocolour = 1.6503661
pseudocolour_error = 0.009192964
ra_pseudocolour_corr = -0.16866492
dec_pseudocolour_corr = 0.1401426
parallax_pseudocolour_corr = 0.056960676
pmra_pseudocolour_corr = 0.25005895
pmdec_pseudocolour_corr = -0.18921316
astrometric_matched_transits = 83
visibility_periods_used = 20
astrometric_sigma5d_max = 0.06538133
matched_transits = 92
new_matched_transits = 92
matched_transits_removed = 0
ipd_gof_harmonic_amplitude = 0.03160988
ipd_gof_harmonic_phase = 129.55466
ipd_frac_multi_peak = 1
ipd_frac_odd_win = 0
ruwe = 1.0719373
duplicated_source = true
phot_g_n_obs = 785
phot_g_mean_flux = 114389692.53657362
phot_g_mean_flux_error = 46191.53
phot_g_mean_flux_over_error = 2476.4214
phot_g_mean_mag = 5.5413995
phot_bp_n_obs = 87
phot_bp_mean_flux = 71745873.33965668
phot_bp_mean_flux_error = 26736.895
phot_bp_mean_flux_over_error = 2683.4033
phot_bp_mean_mag = 5.69905
phot_rp_n_obs = 80
phot_rp_mean_flux = 64529964.052254006
phot_rp_mean_flux_error = 92857.22
phot_rp_mean_flux_over_error = 694.9375
phot_rp_mean_mag = 5.223492
phot_bp_rp_excess_factor = 1.1913297
phot_bp_n_contaminated_transits = 0
phot_bp_n_blended_transits = 3
phot_rp_n_contaminated_transits = 0
phot_rp_n_blended_transits = 0
phot_proc_mode = 0
bp_rp = 0.4755578
bp_g = 0.15765047
g_rp = 0.31790733
radial_velocity = -0.4430779
radial_velocity_error = 0.118973985
rv_method_used = 1
rv_nb_transits = 58
rv_nb_deblended_transits = 0
rv_visibility_periods_used = 20
rv_expected_sig_to_noise = 1533.9193
rv_chisq_pvalue = 0.92764956
rv_time_duration = 989.9464
rv_amplitude_robust = 1.1374276
rv_template_teff = 6750.0
rv_template_logg = 4.5
rv_template_fe_h = -0.25
rv_atm_param_origin = 222
vbroad = 18.153913
vbroad_error = 0.4444403
vbroad_nb_transits = 54
grvs_mag = 5.111939
grvs_mag_error = 0.004479884
grvs_mag_nb_transits = 58
phot_variable_flag = NOT_AVAILABLE
l = 118.32943241495192
b = 78.77230769775957
ecl_lon = 174.56315973489203
ecl_lat = 40.11567547202333
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 = 1.0203268e-11
classprob_dsc_combmod_galaxy = 5.0964812e-11
classprob_dsc_combmod_star = 1.0001014e-06
teff_gspphot = 6908.968
teff_gspphot_lower = 6905.0166
teff_gspphot_upper = 6914.9556
logg_gspphot = 4.1537
logg_gspphot_lower = 4.1413
logg_gspphot_upper = 4.1714
mh_gspphot = -0.6051
mh_gspphot_lower = -0.7519
mh_gspphot_upper = -0.5175
distance_gspphot = 32.5622
distance_gspphot_lower = 32.0827
distance_gspphot_upper = 32.8458
azero_gspphot = 0.0002
azero_gspphot_lower = 0.0
azero_gspphot_upper = 0.0004
ag_gspphot = 0.0001
ag_gspphot_lower = 0.0
ag_gspphot_upper = 0.0004
ebpminrp_gspphot = 0.0001
ebpminrp_gspphot_lower = 0.0
ebpminrp_gspphot_upper = 0.0002
libname_gspphot = A
- gaiadr3.astrophysical_parameters
solution_id = 1636148068921376768
source_id = 1517698716348324992
classprob_dsc_combmod_quasar = 6.085834e-08
classprob_dsc_combmod_galaxy = 7.6642614e-08
classprob_dsc_combmod_star = 0.99999964
classprob_dsc_combmod_whitedwarf = 2.6027877e-07
classprob_dsc_combmod_binarystar = 1.0087399e-10
classprob_dsc_specmod_quasar = 0.005913337
classprob_dsc_specmod_galaxy = 0.0014909036
classprob_dsc_specmod_star = 0.9913073
classprob_dsc_specmod_whitedwarf = 0.0012884141
classprob_dsc_specmod_binarystar = 0.0
classprob_dsc_allosmod_quasar = 0.0
classprob_dsc_allosmod_galaxy = 0.0
classprob_dsc_allosmod_star = 1.0
ew_espels_halpha = 0.16638902
ew_espels_halpha_uncertainty = 0.036826845
ew_espels_halpha_flag = 0
ew_espels_halpha_model = 0.179005
flags_esphs = 91
spectraltype_esphs = B
mh_msc = -0.10003106
mh_msc_upper = -0.099622175
mh_msc_lower = -0.10081516
azero_msc = 0.09970021
azero_msc_upper = 0.10183026
azero_msc_lower = 0.09652552
distance_msc = 27.53842
distance_msc_upper = 28.225332
distance_msc_lower = 26.899076
teff_msc1 = 7600.678
teff_msc1_upper = 7608.2515
teff_msc1_lower = 7595.649
teff_msc2 = 7599.17
teff_msc2_upper = 7606.2207
teff_msc2_lower = 7586.6113
logg_msc1 = 3.8996415
logg_msc1_upper = 3.9027934
logg_msc1_lower = 3.893886
logg_msc2 = 3.900081
logg_msc2_upper = 3.903979
logg_msc2_lower = 3.8984835
ag_msc = 0.090887845
ag_msc_upper = 0.09284057
ag_msc_lower = 0.08801013
logposterior_msc = -7587.881
mcmcaccept_msc = 0.34448686
mcmcdrift_msc = 0.9177877
flags_msc = 1
    - gaiadr3.astrophysical_parameters
solution_id = 1636148068921376768
source_id = 1517698613271954304
classprob_dsc_combmod_quasar = 1.0203268e-11
classprob_dsc_combmod_galaxy = 5.0964812e-11
classprob_dsc_combmod_star = 1.0001014e-06
classprob_dsc_combmod_whitedwarf = 1.5149024e-06
classprob_dsc_combmod_binarystar = 0.99999744
classprob_dsc_specmod_quasar = 0.0
classprob_dsc_specmod_galaxy = 0.0
classprob_dsc_specmod_star = 0.0
classprob_dsc_specmod_whitedwarf = 7.563013e-05
classprob_dsc_specmod_binarystar = 0.99992436
classprob_dsc_allosmod_quasar = 0.0
classprob_dsc_allosmod_galaxy = 0.0
classprob_dsc_allosmod_star = 1.0
teff_gspphot = 6908.968
teff_gspphot_lower = 6905.0166
teff_gspphot_upper = 6914.9556
logg_gspphot = 4.1537
logg_gspphot_lower = 4.1413
logg_gspphot_upper = 4.1714
mh_gspphot = -0.6051
mh_gspphot_lower = -0.7519
mh_gspphot_upper = -0.5175
distance_gspphot = 32.5622
distance_gspphot_lower = 32.0827
distance_gspphot_upper = 32.8458
azero_gspphot = 0.0002
azero_gspphot_lower = 0.0
azero_gspphot_upper = 0.0004
ag_gspphot = 0.0001
ag_gspphot_lower = 0.0
ag_gspphot_upper = 0.0004
abp_gspphot = 0.0002
abp_gspphot_lower = 0.0
abp_gspphot_upper = 0.0005
arp_gspphot = 0.0001
arp_gspphot_lower = 0.0
arp_gspphot_upper = 0.0003
ebpminrp_gspphot = 0.0001
ebpminrp_gspphot_lower = 0.0
ebpminrp_gspphot_upper = 0.0002
mg_gspphot = 2.9688
mg_gspphot_lower = 2.9491
mg_gspphot_upper = 3.0022
radius_gspphot = 1.5425
radius_gspphot_lower = 1.515
radius_gspphot_upper = 1.5595
logposterior_gspphot = -7003.4214
mcmcaccept_gspphot = 0.38539186
libname_gspphot = A
teff_gspspec = 7071.0
teff_gspspec_lower = 7069.0
teff_gspspec_upper = 7072.0
logg_gspspec = 4.39
logg_gspspec_lower = 4.39
logg_gspspec_upper = 4.39
mh_gspspec = -0.34
mh_gspspec_lower = -0.35
mh_gspspec_upper = -0.34
alphafe_gspspec = 0.39
alphafe_gspspec_lower = 0.39
alphafe_gspspec_upper = 0.39
dib_gspspec_lambda = 862.3963
dib_gspspec_lambda_uncertainty = 0.0030621993
dibew_gspspec = 0.018
dibew_gspspec_uncertainty = 0.008
dibewnoise_gspspec_uncertainty = -1.0
dibp0_gspspec = -0.0155
dibp2_gspspec = 0.4688
dibp2_gspspec_uncertainty = 0.0349
dibqf_gspspec = 5
flags_gspspec = 00100000000009999999999999999999999999995
logchisq_gspspec = -4.2807703
ew_espels_halpha = 0.18006642
ew_espels_halpha_uncertainty = 0.014241177
ew_espels_halpha_flag = 0
ew_espels_halpha_model = 0.300638
flags_esphs = 94
spectraltype_esphs = F
radius_flame = 1.5460631
radius_flame_lower = 1.5147473
radius_flame_upper = 1.5776374
lum_flame = 4.904655
lum_flame_lower = 4.873216
lum_flame_upper = 4.9451895
mass_flame = 1.4241995
mass_flame_lower = 1.3841714
mass_flame_upper = 1.4642613
age_flame = 1.280923
age_flame_lower = 0.93408453
age_flame_upper = 1.627408
flags_flame = 00
evolstage_flame = 191
gravredshift_flame = 0.5101621
gravredshift_flame_lower = 0.5011926
gravredshift_flame_upper = 0.5207073
bc_flame = 0.040771235
mh_msc = 0.041586425
mh_msc_upper = 0.5
mh_msc_lower = -1.0
azero_msc = 0.17395927
azero_msc_upper = 0.37885308
azero_msc_lower = 0.0
distance_msc = 46.360268
distance_msc_upper = 76.41905
distance_msc_lower = 32.23311
teff_msc1 = 7468.6934
teff_msc1_upper = 8000.0
teff_msc1_lower = 4833.552
teff_msc2 = 6070.2666
teff_msc2_upper = 7196.7803
teff_msc2_lower = 4172.752
logg_msc1 = 4.1719613
logg_msc1_upper = 4.5957932
logg_msc1_lower = 2.8673491
logg_msc2 = 4.3924713
logg_msc2_upper = 4.9249506
logg_msc2_lower = 2.9632425
ag_msc = 0.15504855
ag_msc_upper = 0.34020263
ag_msc_lower = 0.0
logposterior_msc = -10564.501
mcmcaccept_msc = 0.17221957
mcmcdrift_msc = 0.16808641
flags_msc = 1




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. This research has made use of the SIMBAD database, operated at CDS, Strasbourg, France.


Report Information
Double Star Calculator: Version 1.2 ($Rev: 2591 $)
Report created: 2026-09-09 08:33:36 +0200



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