Double Star Calculator - Results


STF 1487 - Astrometric and kinematic properties
Gaia Source ID - Star A          : 3996208310033740160     Simbad
Gaia Source ID - Star B          : 3996208310033739520     Simbad
Observation Epoch : J2025.321 / 2025-04-28 Angular Separation : 6.648 ± 0.0067 arcsec Position Angle : 112.78 ± 0.0635 degree
Star A/B Epoch : J2016.000 / J2016.000 Angular Separation : 6.620 ± 0.0006 arcsec Position Angle : 112.53 ± 0.0074 degree Projected Separation : 631 au Spatial Separation : 4.50 ± 5.49 pc Spatial Separation : 14.68 ± 17.92 ly Parallax Significance : 0.78 σ 3D Space Velocity Angle : 8.65 ± 7.50 degree ΔProper Motion Angle : 3.13 ± 0.58 degree ΔTotal Proper Motion : 0.65 ± 0.70 mas/yr ΔTangential Velocity : 1.37 ± 2.06 km/s ΔRadial Velocity : 4.93 ± 5.04 km/s ΔSpeed (scalar) : 1.20 ± 2.06 km/s ΔRelative Velocity (3D) : 5.47 ± 4.57 km/s

Aladin Lite Sky Atlas



Star A - Stellar Data
Gaia Source ID                   : 3996208310033740160           VizieR
Epoch : J2016.000 Right Ascension (RA) : 10h 55m 36.71s Declination (Dec) : 24° 44' 58.79" Distance : 93.09 ± 5.48 pc Distance : 303.63 ± 17.88 ly Magnitude (G-band) : 4.38 mag Absolute Magnitude : -0.57 ± 0.13 mag Stellar Extinction : 0.11 ± 0.01 mag Spectral Type (BP/RP) : B Bolometric correction : -1.34 mag Luminosity : 455.27 + 57.29 / − 50.88 L☉ Log(Luminosity) : 2.65827 Effective temperature (Teff) : 9568.31 +32.23 / -206.65 K Log(Teff) : 3.98084 Mass estimation : 4.69 M☉ RUWE : 3.68 Position Angle of Proper Motion : 259.19 ± 0.58 degree Total Proper Motion : 78.37 ± 0.70 mas/yr Tangential Velocity : 34.58 ± 2.06 km/s Radial Velocity (Gaia) : 3.63 ± 0.67 km/s Space Velocity : 34.77 ± 2.05 km/s

Star A - Selected astrophysical parameters
DSC-Combmod binary star          :       0.00
DSC-Specmod binary star          :       0.03
Radius from GSP-Phot Aeneas      :       6.70  ±   0.38          R☉
Spectral type from ESP-ELS       :          A
Radius of the star from FLAME    :       4.65  ±   0.25          R☉
Bolometric correction            :      -0.23                    mag
Luminosity of the star (FLAME)   :     160.49  ±  18.14          L☉
Mass of the star from FLAME      :       3.08  ±   0.08          M☉
FLAME quality indicators         :         00
  Quality                        :       OK
  Source                         :       Parallax used
Evolutionary stage from FLAME    :        293      Main Sequence (early)

Star A - Double Star Quality Metrics
Parallax over error :     16.982 : good
RUWE                :      3.680 : poor astrometric fit, (possible double)
Non Single Star     :            : Single Star
Duplicated source   :      false : single source
G magnitude         :      4.384 : G > 3 mag, photometry reliable
Excess noise        :      3.334 : Poor fit
  Significance      :  15701.129 :   Possible binary or jitter
BP-RP excess factor :      1.079 : photometry consistent
Visibility periods  :         10 : high, indicates well observed star
IPD multi-peak frac :         0% : single peak detected
IDP GoF harmonic amp:      0.071 : unobtrusive (single star source)


Star B - Stellar Data
Gaia Source ID                   : 3996208310033739520           VizieR
Epoch : J2016.000 Right Ascension (RA) : 10h 55m 37.16s Declination (Dec) : 24° 44' 56.25" Distance : 97.59 ± 0.36 pc Distance : 318.31 ± 1.18 ly Magnitude (G-band) : 6.41 mag Absolute Magnitude : 1.46 ± 0.01 mag Stellar Extinction : N/A Spectral Type (BP/RP) : B Bolometric correction : -1.34 mag Luminosity : 70.48 + 0.52 / − 0.52 L☉ Log(Luminosity) : 1.84808 Teff (bp_rp) : 15000.00 K Log(Teff) : 4.17609 Mass estimation : 2.93 M☉ RUWE : 1.09 Position Angle of Proper Motion : 256.06 ± 0.03 degree Total Proper Motion : 77.71 ± 0.04 mas/yr Tangential Velocity : 35.95 ± 0.13 km/s Radial Velocity (Simbad) : -1.30 ± 5.00 km/s Bibcode : 1979IAUS...30...57E Space Velocity : 35.98 ± 0.22 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 :    270.706 : very good
RUWE                :      1.090 : good astrometric fit (single star)
Non Single Star     :            : Single Star
Duplicated source   :      false : single source
G magnitude         :      6.407 : G > 3 mag, photometry reliable
Excess noise        :      0.257 : Good fit
  Significance      :     81.393 :   Minor noise, likely negligible
BP-RP excess factor :      1.161 : photometry consistent
Visibility periods  :         15 : high, indicates well observed star
IPD multi-peak frac :         0% : single peak detected
IDP GoF harmonic amp:      0.155 : slight indication of structure

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


Double Star plausibility checks
Common Proper Motion

Classification acc. to Harshaw     :
===================================
rPM (Proper Motion Ratio)          :        0.06     (CPM)

Co-Moving

UWLE for Co-Moving Pairs (3D)      :
===================================
COMOV: Velocity Evidence Indicator :        0.38     (Moderate)
COMOV: Distance Evidence Indicator :        0.09     (Unlikely)
Co-Moving Total Evidence Indicator :        0.19     (Weak)

rPM/COMOV Agreement                :                 (Discrepant)

Binarity

Separation, Sigma and Reliability  :
===================================
Projected Separation               :         631     au
Spatial Separation                 :      928543  ±  1133177  au
  1-Sigma Range                    : [       631,    2061720] au
  Significance                     :        0.78     σ
  Note: 3D distance not significantly resolved

3D spatial distance probabilities : =================================== P(D-3D <= 1262 au) : 0.0 % (2.0 * D-projected) P(D-3D <= 2500 au) : 0.1 % (Wide binary) P(D-3D <= 10000 au) : 0.3 % (Wide binary) P(D-3D <= 20000 au) : 0.6 % (Very wide binary) P(D-3D <= 50000 au) : 1.6 % (Extremely wide) P(D-3D <= 206265 au) : 7.0 % (Jacobi radius)

Proper Motion and Velocity         :
===================================
rPM (Proper Motion Ratio)          :        0.06     (CPM)
ΔRelative Velocity (3D)            :        5.47  ±  4.57   km/s

UWLE for Wide Binaries (3D)        :
===================================
WBS: Velocity Evidence Indicator   :        0.00     (Unlikely)
WBS: Distance Evidence Indicator   :        0.01     (Unlikely)
Binarity Total Evidence Indicator  :        0.01     (Unlikely)


UWLE for Wide Binaries (2D)        :
===================================
WBS: Velocity Evidence Indicator   :        0.17     (Weak)
WBS: Distance Evidence Indicator   :        0.02     (Unlikely)
Binarity Total Evidence Indicator  :        0.05     (Unlikely)

UWLE for Tight Binaries (2D) : =================================== TBS: Velocity Evidence Indicator : 0.17 (Weak) TBS: Distance Evidence Indicator : 0.67 (Moderate) Binarity Total Evidence Indicator : 0.34 (Moderate) Orbital & Binding Dynamics : ----------------------------------- Est. orbital period at lower bound : 4979.50 years Escape Velocity : 4.63 km/s (Unbound) 3D Velocity Difference : 5.47 ± 4.57 km/s Circular Orbital Velocity : 3.27 km/s Binding Indicator η : 1.40 (Unbound) η < 0.5 : Strongly bound / 0.5 ≤ η < 1.0: Bound / η ≥ 1.0 : Unbound
UWLE Evidence Indicators - Parametrization:
===========================================
Mode                 Condition  s0         v0              Δx         Uncertainty
---------------------------------------------------------------------------------
Co-Moving                -         1.0 pc    5 km/s        spatial    σspatial
Wide Binaries (3D)       -      20,000 au  ∝√1/dspatial     spatial    σspatial
Wide Binaries (2D)   RI < 3.0   20,000 au  ∝√1/dprojected   projected  σspatial
Tight Binaries (2D)  RI < 3.0    1,000 au  ∝√1/dprojected   projected  σprojected

RUWE parameters
RUWE probability for a binary system (Star A) :  3.68 : High
RUWE probability for a binary system (Star B) :  1.09 : 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      6.286    0.082     109.230    0.834
1901.0      6.288    0.082     109.260    0.827
1902.0      6.291    0.081     109.290    0.819
1903.0      6.294    0.080     109.320    0.812
1904.0      6.297    0.079     109.350    0.804
1905.0      6.300    0.079     109.380    0.797
1906.0      6.302    0.078     109.410    0.789
1907.0      6.305    0.077     109.439    0.781
1908.0      6.308    0.077     109.469    0.774
1909.0      6.311    0.076     109.499    0.766
1910.0      6.314    0.075     109.529    0.759
1911.0      6.316    0.074     109.558    0.751
1912.0      6.319    0.074     109.588    0.744
1913.0      6.322    0.073     109.618    0.736
1914.0      6.325    0.072     109.647    0.729
1915.0      6.328    0.072     109.677    0.721
1916.0      6.331    0.071     109.706    0.714
1917.0      6.333    0.070     109.736    0.706
1918.0      6.336    0.070     109.765    0.699
1919.0      6.339    0.069     109.795    0.691
1920.0      6.342    0.068     109.824    0.684
1921.0      6.345    0.067     109.854    0.677
1922.0      6.347    0.067     109.883    0.669
1923.0      6.350    0.066     109.912    0.662
1924.0      6.353    0.065     109.942    0.654
1925.0      6.356    0.065     109.971    0.647
1926.0      6.359    0.064     110.000    0.639
1927.0      6.362    0.063     110.030    0.632
1928.0      6.364    0.062     110.059    0.625
1929.0      6.367    0.062     110.088    0.617
1930.0      6.370    0.061     110.117    0.610
1931.0      6.373    0.060     110.146    0.602
1932.0      6.376    0.060     110.175    0.595
1933.0      6.379    0.059     110.204    0.588
1934.0      6.382    0.058     110.234    0.580
1935.0      6.384    0.058     110.263    0.573
1936.0      6.387    0.057     110.292    0.566
1937.0      6.390    0.056     110.321    0.558
1938.0      6.393    0.055     110.350    0.551
1939.0      6.396    0.055     110.379    0.544
1940.0      6.399    0.054     110.407    0.536
1941.0      6.401    0.053     110.436    0.529
1942.0      6.404    0.053     110.465    0.522
1943.0      6.407    0.052     110.494    0.514
1944.0      6.410    0.051     110.523    0.507
1945.0      6.413    0.050     110.552    0.500
1946.0      6.416    0.050     110.580    0.492
1947.0      6.419    0.049     110.609    0.485
1948.0      6.422    0.048     110.638    0.478
1949.0      6.424    0.048     110.667    0.471
1950.0      6.427    0.047     110.695    0.463
1951.0      6.430    0.046     110.724    0.456
1952.0      6.433    0.045     110.752    0.449
1953.0      6.436    0.045     110.781    0.442
1954.0      6.439    0.044     110.810    0.435
1955.0      6.442    0.043     110.838    0.427
1956.0      6.445    0.043     110.867    0.420
1957.0      6.447    0.042     110.895    0.413
1958.0      6.450    0.041     110.924    0.406
1959.0      6.453    0.041     110.952    0.399
1960.0      6.456    0.040     110.980    0.391
1961.0      6.459    0.039     111.009    0.384
1962.0      6.462    0.038     111.037    0.377
1963.0      6.465    0.038     111.065    0.370
1964.0      6.468    0.037     111.094    0.363
1965.0      6.471    0.036     111.122    0.356
1966.0      6.473    0.036     111.150    0.348
1967.0      6.476    0.035     111.178    0.341
1968.0      6.479    0.034     111.207    0.334
1969.0      6.482    0.033     111.235    0.327
1970.0      6.485    0.033     111.263    0.320
1971.0      6.488    0.032     111.291    0.313
1972.0      6.491    0.031     111.319    0.306
1973.0      6.494    0.031     111.347    0.299
1974.0      6.497    0.030     111.375    0.292
1975.0      6.500    0.029     111.403    0.284
1976.0      6.503    0.028     111.431    0.277
1977.0      6.505    0.028     111.459    0.270
1978.0      6.508    0.027     111.487    0.263
1979.0      6.511    0.026     111.515    0.256
1980.0      6.514    0.026     111.543    0.249
1981.0      6.517    0.025     111.571    0.242
1982.0      6.520    0.024     111.599    0.235
1983.0      6.523    0.023     111.627    0.228
1984.0      6.526    0.023     111.654    0.221
1985.0      6.529    0.022     111.682    0.214
1986.0      6.532    0.021     111.710    0.207
1987.0      6.535    0.021     111.738    0.200
1988.0      6.538    0.020     111.765    0.193
1989.0      6.541    0.019     111.793    0.186
1990.0      6.543    0.019     111.821    0.179
1991.0      6.546    0.018     111.848    0.172
1992.0      6.549    0.017     111.876    0.165
1993.0      6.552    0.016     111.904    0.158
1994.0      6.555    0.016     111.931    0.151
1995.0      6.558    0.015     111.959    0.144
1996.0      6.561    0.014     111.986    0.137
1997.0      6.564    0.014     112.014    0.131
1998.0      6.567    0.013     112.041    0.124
1999.0      6.570    0.012     112.069    0.117
2000.0      6.573    0.011     112.096    0.110
2001.0      6.576    0.011     112.123    0.103
2002.0      6.579    0.010     112.151    0.096
2003.0      6.582    0.009     112.178    0.089
2004.0      6.585    0.009     112.205    0.082
2005.0      6.588    0.008     112.233    0.076
2006.0      6.591    0.007     112.260    0.069
2007.0      6.594    0.006     112.287    0.062
2008.0      6.597    0.006     112.314    0.055
2009.0      6.599    0.005     112.341    0.048
2010.0      6.602    0.004     112.369    0.042
2011.0      6.605    0.004     112.396    0.035
2012.0      6.608    0.003     112.423    0.028
2013.0      6.611    0.002     112.450    0.022
2014.0      6.614    0.002     112.477    0.015
2015.0      6.617    0.001     112.504    0.010
2016.0      6.620    0.001     112.531    0.007
2017.0      6.623    0.001     112.558    0.010
2018.0      6.626    0.002     112.585    0.015
2019.0      6.629    0.002     112.612    0.022
2020.0      6.632    0.003     112.639    0.028
2021.0      6.635    0.004     112.666    0.035
2022.0      6.638    0.004     112.693    0.041
2023.0      6.641    0.005     112.719    0.048
2024.0      6.644    0.006     112.746    0.055
2025.0      6.647    0.006     112.773    0.061
2026.0      6.650    0.007     112.800    0.068
2027.0      6.653    0.008     112.827    0.075
2028.0      6.656    0.009     112.853    0.081
2029.0      6.659    0.009     112.880    0.088
2030.0      6.662    0.010     112.907    0.095
2031.0      6.665    0.011     112.933    0.101
2032.0      6.668    0.011     112.960    0.108
2033.0      6.671    0.012     112.987    0.115
2034.0      6.674    0.013     113.013    0.121
2035.0      6.677    0.014     113.040    0.128
2036.0      6.680    0.014     113.066    0.135
2037.0      6.683    0.015     113.093    0.141
2038.0      6.686    0.016     113.119    0.148
2039.0      6.689    0.016     113.146    0.155
2040.0      6.692    0.017     113.172    0.161
2041.0      6.695    0.018     113.199    0.168
2042.0      6.698    0.019     113.225    0.175
2043.0      6.701    0.019     113.251    0.181
2044.0      6.704    0.020     113.278    0.188
2045.0      6.707    0.021     113.304    0.194
2046.0      6.710    0.021     113.330    0.201
2047.0      6.713    0.022     113.356    0.208
2048.0      6.716    0.023     113.383    0.214
2049.0      6.719    0.024     113.409    0.221
2050.0      6.722    0.024     113.435    0.227
2051.0      6.725    0.025     113.461    0.234
2052.0      6.728    0.026     113.487    0.241
2053.0      6.731    0.026     113.514    0.247
2054.0      6.734    0.027     113.540    0.254
2055.0      6.737    0.028     113.566    0.260
2056.0      6.740    0.029     113.592    0.267
2057.0      6.743    0.029     113.618    0.273
2058.0      6.746    0.030     113.644    0.280
2059.0      6.750    0.031     113.670    0.286
2060.0      6.753    0.031     113.696    0.293
2061.0      6.756    0.032     113.722    0.299
2062.0      6.759    0.033     113.748    0.306
2063.0      6.762    0.034     113.774    0.312
2064.0      6.765    0.034     113.799    0.319
2065.0      6.768    0.035     113.825    0.325
2066.0      6.771    0.036     113.851    0.332
2067.0      6.774    0.036     113.877    0.338
2068.0      6.777    0.037     113.903    0.345
2069.0      6.780    0.038     113.928    0.351
2070.0      6.783    0.039     113.954    0.358
2071.0      6.786    0.039     113.980    0.364
2072.0      6.789    0.040     114.006    0.370
2073.0      6.792    0.041     114.031    0.377
2074.0      6.795    0.041     114.057    0.383
2075.0      6.798    0.042     114.083    0.390
2076.0      6.801    0.043     114.108    0.396
2077.0      6.804    0.044     114.134    0.402
2078.0      6.807    0.044     114.159    0.409
2079.0      6.810    0.045     114.185    0.415
2080.0      6.814    0.046     114.210    0.422
2081.0      6.817    0.047     114.236    0.428
2082.0      6.820    0.047     114.261    0.434
2083.0      6.823    0.048     114.287    0.441
2084.0      6.826    0.049     114.312    0.447
2085.0      6.829    0.049     114.337    0.453
2086.0      6.832    0.050     114.363    0.460
2087.0      6.835    0.051     114.388    0.466
2088.0      6.838    0.052     114.413    0.472
2089.0      6.841    0.052     114.439    0.479
2090.0      6.844    0.053     114.464    0.485
2091.0      6.847    0.054     114.489    0.491
2092.0      6.850    0.054     114.515    0.498
2093.0      6.854    0.055     114.540    0.504
2094.0      6.857    0.056     114.565    0.510
2095.0      6.860    0.057     114.590    0.517
2096.0      6.863    0.057     114.615    0.523
2097.0      6.866    0.058     114.640    0.529
2098.0      6.869    0.059     114.665    0.535
2099.0      6.872    0.059     114.690    0.542
2100.0      6.875    0.060     114.716    0.548




Measurements for STF 1487
 
WDS ID      Discovr     Comp  #    Sep      PA       Epoch      Obs  Telescope     Camera    Note
--------------------------------------------------------------------------------------------------
10556+2445  STF 1487          1    6.55"    113.0°   B2025.260  HWI  120/900 APO   ASI678MM
10556+2445  STF 1487          1    6.60"    112.2°   B2025.325  HWI  120/900 APO   ASI678MM

-- Image of STF-1487-taken with Equinox 120/900 APO --


WDS record for STF 1487
wds_id                       : 10556+2445
discoverer_code              : STF
discoverer_number            : 1487
discoverer_components        : 
date_first                   : 1777
date_last                    : 2024
num_of_obs                   : 281
pa_first                     : 105
pa_last                      : 113
sep_first                    : 6.0
sep_last                     : 6.6
mag_primary                  : 4.48
mag_secondary                : 6.3
spectral_type                : A1V+A2Vn
primary_proper_motion_RA     : -72
primary_proper_motion_DEC    : -13
secondary_proper_motion_RA   : -78
secondary_proper_motion_DEC  : -15
dm_number                    : +25 2314
notes                        : N
precise_coordinate           : 105536.80+244459.0
                             : 10:55:36.80 +24:44:59.0

WDS Notes:
----------
N: Notes found in WDSNOT MEMO of WDS



Parsed GAIA Input Data
Click to expand/collapse the Gaia Input Data:
Star A - gaiadr3.gaia_source
solution_id = 1636148068921376768
designation = Gaia DR3 3996208310033740160
source_id = 3996208310033740160
random_index = 860872811
ref_epoch = 2016.0
ra = 163.902962252303
ra_error = 0.6342912
dec = 24.74966310017492
dec_error = 0.8916813
parallax = 10.742001981652932
parallax_error = 0.6325663
parallax_over_error = 16.981623
pm = 78.367744
pmra = -76.9770532790585
pmra_error = 0.6960138
pmdec = -14.698165053171717
pmdec_error = 0.7989493
ra_dec_corr = -0.8226504
ra_parallax_corr = -0.18700905
ra_pmra_corr = 0.355078
ra_pmdec_corr = -0.3988056
dec_parallax_corr = 0.041840762
dec_pmra_corr = -0.46378317
dec_pmdec_corr = 0.2851569
parallax_pmra_corr = 0.40037206
parallax_pmdec_corr = -0.25730005
pmra_pmdec_corr = -0.8452277
astrometric_n_obs_al = 238
astrometric_n_obs_ac = 238
astrometric_n_good_obs_al = 235
astrometric_n_bad_obs_al = 3
astrometric_gof_al = 44.58766
astrometric_chi2_al = 374814.56
astrometric_excess_noise = 3.334001
astrometric_excess_noise_sig = 15701.129
astrometric_params_solved = 31
astrometric_primary_flag = false
nu_eff_used_in_astrometry = 1.7077893
astrometric_matched_transits = 27
visibility_periods_used = 10
astrometric_sigma5d_max = 1.5136468
matched_transits = 27
new_matched_transits = 19
matched_transits_removed = 12
ipd_gof_harmonic_amplitude = 0.071323924
ipd_gof_harmonic_phase = 39.981537
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 3.6832018
duplicated_source = false
phot_g_n_obs = 226
phot_g_mean_flux = 332159755.7352301
phot_g_mean_flux_error = 625913.56
phot_g_mean_flux_over_error = 530.67993
phot_g_mean_mag = 4.3839993
phot_bp_n_obs = 27
phot_bp_mean_flux = 223535563.3995606
phot_bp_mean_flux_error = 210815.17
phot_bp_mean_flux_over_error = 1060.3391
phot_bp_mean_mag = 4.4651756
phot_rp_n_obs = 22
phot_rp_mean_flux = 134804112.05369124
phot_rp_mean_flux_error = 261994.45
phot_rp_mean_flux_over_error = 514.5304
phot_rp_mean_mag = 4.423638
phot_bp_rp_excess_factor = 1.0788172
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 = 0.04153776
bp_g = 0.08117628
g_rp = -0.03963852
radial_velocity = 3.6337602
radial_velocity_error = 0.6655565
rv_method_used = 1
rv_nb_transits = 14
rv_nb_deblended_transits = 0
rv_visibility_periods_used = 8
rv_expected_sig_to_noise = 1050.5767
rv_chisq_pvalue = 1.398881e-14
rv_time_duration = 899.4781
rv_amplitude_robust = 7.418493
rv_template_teff = 9000.0
rv_template_logg = 4.0
rv_template_fe_h = 0.0
rv_atm_param_origin = 555
vbroad = 187.2911
vbroad_error = 8.527073
vbroad_nb_transits = 14
grvs_mag = 4.397969
grvs_mag_error = 0.006308469
grvs_mag_nb_transits = 14
phot_variable_flag = NOT_AVAILABLE
l = 211.5944331871304
b = 63.909220400779944
ecl_lon = 155.50486677628444
ecl_lat = 16.49603416862918
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 = 1.0560676e-13
classprob_dsc_combmod_galaxy = 5.2750046e-13
classprob_dsc_combmod_star = 0.9996464
teff_gspphot = 9568.31
teff_gspphot_lower = 9361.664
teff_gspphot_upper = 9600.537
logg_gspphot = 3.2632
logg_gspphot_lower = 3.1997
logg_gspphot_upper = 3.2965
mh_gspphot = -0.8452
mh_gspphot_lower = -0.8485
mh_gspphot_upper = -0.8417
distance_gspphot = 139.4939
distance_gspphot_lower = 134.47
distance_gspphot_upper = 147.4965
azero_gspphot = 0.1092
azero_gspphot_lower = 0.0838
azero_gspphot_upper = 0.1136
ag_gspphot = 0.1051
ag_gspphot_lower = 0.0805
ag_gspphot_upper = 0.1093
ebpminrp_gspphot = 0.0561
ebpminrp_gspphot_lower = 0.043
ebpminrp_gspphot_upper = 0.0584
libname_gspphot = A
    Star B - gaiadr3.gaia_source
solution_id = 1636148068921376768
designation = Gaia DR3 3996208310033739520
source_id = 3996208310033739520
random_index = 369072235
ref_epoch = 2016.0
ra = 163.9048326492896
ra_error = 0.03027819
dec = 24.748958425991074
dec_error = 0.02956381
parallax = 10.246508720066107
parallax_error = 0.0378511
parallax_over_error = 270.70572
pm = 77.71424
pmra = -75.426017325438
pmra_error = 0.035681095
pmdec = -18.71948997062882
pmdec_error = 0.040970996
ra_dec_corr = -0.3360909
ra_parallax_corr = -0.29813865
ra_pmra_corr = -0.13018787
ra_pmdec_corr = -0.23565383
dec_parallax_corr = -0.009552497
dec_pmra_corr = -0.1780529
dec_pmdec_corr = -0.058031637
parallax_pmra_corr = 0.21056841
parallax_pmdec_corr = 0.06536637
pmra_pmdec_corr = -0.6297689
astrometric_n_obs_al = 282
astrometric_n_obs_ac = 282
astrometric_n_good_obs_al = 281
astrometric_n_bad_obs_al = 1
astrometric_gof_al = 2.2180507
astrometric_chi2_al = 2821.9873
astrometric_excess_noise = 0.25664946
astrometric_excess_noise_sig = 81.39296
astrometric_params_solved = 31
astrometric_primary_flag = false
nu_eff_used_in_astrometry = 1.7338644
astrometric_matched_transits = 32
visibility_periods_used = 15
astrometric_sigma5d_max = 0.068069406
matched_transits = 32
new_matched_transits = 19
matched_transits_removed = 4
ipd_gof_harmonic_amplitude = 0.15481001
ipd_gof_harmonic_phase = 109.820435
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 1.0946318
duplicated_source = false
phot_g_n_obs = 277
phot_g_mean_flux = 51544379.92481649
phot_g_mean_flux_error = 16091.326
phot_g_mean_flux_over_error = 3203.24
phot_g_mean_mag = 6.4069138
phot_bp_n_obs = 18
phot_bp_mean_flux = 36657547.00469373
phot_bp_mean_flux_error = 53553.098
phot_bp_mean_flux_over_error = 684.5084
phot_bp_mean_mag = 6.4281335
phot_rp_n_obs = 19
phot_rp_mean_flux = 23196355.528531596
phot_rp_mean_flux_error = 27571.32
phot_rp_mean_flux_over_error = 841.3219
phot_rp_mean_mag = 6.3343463
phot_bp_rp_excess_factor = 1.161211
phot_bp_n_contaminated_transits = 0
phot_bp_n_blended_transits = 0
phot_rp_n_contaminated_transits = 0
phot_rp_n_blended_transits = 8
phot_proc_mode = 0
bp_rp = 0.09378719
bp_g = 0.02121973
g_rp = 0.07256746
phot_variable_flag = NOT_AVAILABLE
l = 211.59677663467164
b = 63.91074343968637
ecl_lon = 155.506784417368
ecl_lat = 16.49606493457664
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 = true
in_andromeda_survey = false
classprob_dsc_combmod_quasar = 1.06887176e-13
classprob_dsc_combmod_galaxy = 5.3389606e-13
classprob_dsc_combmod_star = 0.9995196
radial_velocity = -1.3
radial_velocity_error = 5.0
- gaiadr3.astrophysical_parameters
solution_id = 1636148068921376768
source_id = 3996208310033740160
classprob_dsc_combmod_quasar = 1.0560676e-13
classprob_dsc_combmod_galaxy = 5.2750046e-13
classprob_dsc_combmod_star = 0.9996464
classprob_dsc_combmod_whitedwarf = 2.5752323e-08
classprob_dsc_combmod_binarystar = 0.00035357694
classprob_dsc_specmod_quasar = 0.0
classprob_dsc_specmod_galaxy = 0.0
classprob_dsc_specmod_star = 0.96571714
classprob_dsc_specmod_whitedwarf = 0.00012422145
classprob_dsc_specmod_binarystar = 0.03415856
classprob_dsc_allosmod_quasar = 0.0
classprob_dsc_allosmod_galaxy = 0.0
classprob_dsc_allosmod_star = 1.0
teff_gspphot = 9568.31
teff_gspphot_lower = 9361.664
teff_gspphot_upper = 9600.537
logg_gspphot = 3.2632
logg_gspphot_lower = 3.1997
logg_gspphot_upper = 3.2965
mh_gspphot = -0.8452
mh_gspphot_lower = -0.8485
mh_gspphot_upper = -0.8417
distance_gspphot = 139.4939
distance_gspphot_lower = 134.47
distance_gspphot_upper = 147.4965
azero_gspphot = 0.1092
azero_gspphot_lower = 0.0838
azero_gspphot_upper = 0.1136
ag_gspphot = 0.1051
ag_gspphot_lower = 0.0805
ag_gspphot_upper = 0.1093
abp_gspphot = 0.1232
abp_gspphot_lower = 0.0945
abp_gspphot_upper = 0.1282
arp_gspphot = 0.0671
arp_gspphot_lower = 0.0515
arp_gspphot_upper = 0.0698
ebpminrp_gspphot = 0.0561
ebpminrp_gspphot_lower = 0.043
ebpminrp_gspphot_upper = 0.0584
mg_gspphot = -1.3486
mg_gspphot_lower = -1.4529
mg_gspphot_upper = -1.1933
radius_gspphot = 6.6954
radius_gspphot_lower = 6.447
radius_gspphot_upper = 7.2013
logposterior_gspphot = -4132.1987
mcmcaccept_gspphot = 0.2683072
libname_gspphot = A
ew_espels_halpha = 0.25251228
ew_espels_halpha_uncertainty = 0.02587969
ew_espels_halpha_flag = 0
ew_espels_halpha_model = 0.422233
flags_esphs = 91
spectraltype_esphs = A
radius_flame = 4.6469316
radius_flame_lower = 4.407469
radius_flame_upper = 4.903633
lum_flame = 160.49156
lum_flame_lower = 143.05606
lum_flame_upper = 179.336
mass_flame = 3.0831008
mass_flame_lower = 3.0005882
mass_flame_upper = 3.1679575
age_flame = 0.3245455
age_flame_lower = 0.28752625
age_flame_upper = 0.36339593
flags_flame = 00
evolstage_flame = 293
gravredshift_flame = 0.296387
gravredshift_flame_lower = 0.27538034
gravredshift_flame_upper = 0.3074774
bc_flame = -0.22679952
mh_msc = -0.10092139
mh_msc_upper = -0.097764805
mh_msc_lower = -0.10386348
azero_msc = 0.099023655
azero_msc_upper = 0.10421455
azero_msc_lower = 0.092732236
distance_msc = 67.84395
distance_msc_upper = 68.8817
distance_msc_lower = 67.05484
teff_msc1 = 7604.854
teff_msc1_upper = 7634.2925
teff_msc1_lower = 7577.681
teff_msc2 = 7598.8926
teff_msc2_upper = 7607.55
teff_msc2_lower = 7591.1533
logg_msc1 = 3.4024858
logg_msc1_upper = 3.4241843
logg_msc1_lower = 3.3855653
logg_msc2 = 3.8959873
logg_msc2_upper = 3.9205968
logg_msc2_lower = 3.864745
ag_msc = 0.09051611
ag_msc_upper = 0.09502319
ag_msc_lower = 0.084826924
logposterior_msc = -176505.39
mcmcaccept_msc = 0.34947494
mcmcdrift_msc = 0.2444607
flags_msc = 1
    - gaiadr3.astrophysical_parameters
solution_id = 1636148068921376768
source_id = 3996208310033739520
classprob_dsc_combmod_quasar = 1.06887176e-13
classprob_dsc_combmod_galaxy = 5.3389606e-13
classprob_dsc_combmod_star = 0.9995196
classprob_dsc_combmod_whitedwarf = 2.32459e-08
classprob_dsc_combmod_binarystar = 0.00048047135
classprob_dsc_specmod_quasar = 0.0
classprob_dsc_specmod_galaxy = 0.0
classprob_dsc_specmod_star = 0.9540276
classprob_dsc_specmod_whitedwarf = 0.00011078691
classprob_dsc_specmod_binarystar = 0.045861613
classprob_dsc_allosmod_quasar = 0.0
classprob_dsc_allosmod_galaxy = 0.0
classprob_dsc_allosmod_star = 1.0
ew_espels_halpha = 0.41834536
ew_espels_halpha_uncertainty = 0.031147074
ew_espels_halpha_flag = 0
ew_espels_halpha_model = 0.542497
flags_esphs = 91
spectraltype_esphs = A
mh_msc = -0.0999822
mh_msc_upper = -0.09981859
mh_msc_lower = -0.10012451
azero_msc = 0.09984348
azero_msc_upper = 0.100701936
azero_msc_lower = 0.09887185
distance_msc = 124.836914
distance_msc_upper = 125.29208
distance_msc_lower = 124.475815
teff_msc1 = 7600.121
teff_msc1_upper = 7601.625
teff_msc1_lower = 7598.871
teff_msc2 = 7600.134
teff_msc2_upper = 7601.55
teff_msc2_lower = 7598.796
logg_msc1 = 3.8996744
logg_msc1_upper = 3.9020395
logg_msc1_lower = 3.897729
logg_msc2 = 3.900066
logg_msc2_upper = 3.9013605
logg_msc2_lower = 3.899353
ag_msc = 0.09102082
ag_msc_upper = 0.091813564
ag_msc_lower = 0.09013331
logposterior_msc = -66434.99
mcmcaccept_msc = 0.3487351
mcmcdrift_msc = 0.40844256
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 08:31:18 +0200



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