Double Star Calculator - Results


STF 1268 - Astrometric and kinematic properties
Gaia Source ID - Star A          : 705156050012755712     Simbad
Gaia Source ID - Star B          : 705156256170201856     Simbad
Observation Epoch : J2024.248 / 2024-04-01 Angular Separation : 30.559 ± 0.0012 arcsec Position Angle : 307.46 ± 0.0022 degree
Star A/B Epoch : J2016.000 / J2016.000 Angular Separation : 30.547 ± 0.0001 arcsec Position Angle : 307.49 ± 0.0002 degree Projected Separation : 3202 au Spatial Separation : 2.85 ± 1.87 pc Spatial Separation : 9.30 ± 6.10 ly Parallax Significance : 1.56 σ 3D Space Velocity Angle : 6.38 ± 1.11 degree ΔProper Motion Angle : 2.07 ± 0.17 degree ΔTotal Proper Motion : 1.57 ± 0.14 mas/yr ΔTangential Velocity : 0.11 ± 0.44 km/s ΔRadial Velocity : 3.42 ± 0.57 km/s ΔSpeed (scalar) : 1.58 ± 0.45 km/s ΔRelative Velocity (3D) : 3.54 ± 0.56 km/s

Aladin Lite Sky Atlas



Star A - Stellar Data
Gaia Source ID                   : 705156050012755712           VizieR
Epoch : J2016.000 Right Ascension (RA) : 08h 46m 41.79s Declination (Dec) : 28° 45' 34.92" Distance : 106.24 ± 1.83 pc Distance : 346.52 ± 5.97 ly Magnitude (G-band) : 3.78 mag Absolute Magnitude : -1.35 ± 0.04 mag Stellar Extinction : N/A Spectral Type (BP/RP) : K Bolometric correction : -0.63 mag Luminosity : 486.75 + 17.06 / − 16.48 L☉ Log(Luminosity) : 2.68731 Teff (bp_rp) : 4800.00 K Log(Teff) : 3.68124 Mass estimation : 4.87 M☉ RUWE : 2.08 Position Angle of Proper Motion : 206.80 ± 0.17 degree Total Proper Motion : 48.96 ± 0.13 mas/yr Tangential Velocity : 24.66 ± 0.43 km/s Radial Velocity (Gaia) : 15.66 ± 0.14 km/s Space Velocity : 29.21 ± 0.37 km/s

Star A - Selected astrophysical parameters
DSC-Combmod binary star          :       0.00
DSC-Specmod binary star          :       0.01
Spectral type from ESP-ELS       :          K

Star A - Double Star Quality Metrics
Parallax over error :     58.066 : very good
RUWE                :      2.080 : poor astrometric fit, (possible double)
Non Single Star     :            : Single Star
Duplicated source   :      false : single source
G magnitude         :      3.783 : G > 3 mag, photometry reliable
Excess noise        :      0.943 : Good fit
  Significance      :   1406.371 :   Minor noise, likely negligible
BP-RP excess factor :      1.222 : photometry consistent
Visibility periods  :         17 : high, indicates well observed star
IPD multi-peak frac :         7% : mulitple peaks detected (possible double)
IDP GoF harmonic amp:      0.028 : unobtrusive (single star source)


Star B - Stellar Data
Gaia Source ID                   : 705156256170201856           VizieR
Epoch : J2016.000 Right Ascension (RA) : 08h 46m 39.95s Declination (Dec) : 28° 45' 53.51" Distance : 103.39 ± 0.39 pc Distance : 337.22 ± 1.26 ly Magnitude (G-band) : 6.57 mag Absolute Magnitude : 1.34 ± 0.01 mag Stellar Extinction : 0.16 ± <0.01 mag Spectral Type (BP/RP) : B Bolometric correction : -1.34 mag Luminosity : 78.90 + 0.63 / − 0.62 L☉ Log(Luminosity) : 1.89709 Effective temperature (Teff) : 10124.91 +27.72 / -29.49 K Log(Teff) : 4.00539 Mass estimation : 3.01 M☉ RUWE : 1.01 Position Angle of Proper Motion : 208.87 ± 0.04 degree Total Proper Motion : 50.53 ± 0.03 mas/yr Tangential Velocity : 24.77 ± 0.09 km/s Radial Velocity (Gaia) : 12.24 ± 0.56 km/s Space Velocity : 27.63 ± 0.26 km/s

Star B - Selected astrophysical parameters
DSC-Combmod binary star          :       0.00
DSC-Specmod binary star          :       0.25
Radius from GSP-Phot Aeneas      :       1.83  ±   0.01          R☉
Spectral type from ESP-ELS       :          A
Radius of the star from FLAME    :       1.83  ±   0.04          R☉
Bolometric correction            :      -0.36                    mag
Luminosity of the star (FLAME)   :      31.66  ±   0.33          L☉
Mass of the star from FLAME      :       2.32  ±   0.04          M☉
FLAME quality indicators         :         00
  Quality                        :       OK
  Source                         :       Parallax used
Evolutionary stage from FLAME    :        137      Main Sequence (early)

Star B - Double Star Quality Metrics
Parallax over error :    267.096 : very good
RUWE                :      1.010 : good astrometric fit (single star)
Non Single Star     :            : Single Star
Duplicated source   :      false : single source
G magnitude         :      6.570 : G > 3 mag, photometry reliable
Excess noise        :      0.240 : Good fit
  Significance      :     81.872 :   Minor noise, likely negligible
BP-RP excess factor :      1.158 : photometry consistent
Visibility periods  :         20 : high, indicates well observed star
IPD multi-peak frac :         0% : single peak detected
IDP GoF harmonic amp:      0.030 : 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)          :        0.05     (CPM)

Co-Moving

UWLE for Co-Moving Pairs (3D)      :
===================================
COMOV: Velocity Evidence Indicator :        0.61     (Moderate)
COMOV: Distance Evidence Indicator :        0.08     (Unlikely)
Co-Moving Total Evidence Indicator :        0.22     (Weak)

rPM/COMOV Agreement                :                 (Discrepant)

Binarity

Separation, Sigma and Reliability  :
===================================
Projected Separation               :        3202     au
Spatial Separation                 :      588216  ±   385750  au
  1-Sigma Range                    : [    202466,     973966] au
  Significance                     :        1.56     σ
  Note: 3D distance not significantly resolved

3D spatial distance probabilities : =================================== P(D-3D <= 6404 au) : 0.1 % (2.0 * D-projected) P(D-3D <= 10000 au) : 0.2 % (Wide binary) P(D-3D <= 20000 au) : 0.6 % (Very wide binary) P(D-3D <= 50000 au) : 1.8 % (Extremely wide) P(D-3D <= 206265 au) : 10.3 % (Jacobi radius)

Proper Motion and Velocity         :
===================================
rPM (Proper Motion Ratio)          :        0.05     (CPM)
ΔRelative Velocity (3D)            :        3.54  ±  0.56   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  :        0.00     (Unlikely)


UWLE for Wide Binaries (2D)        :
===================================
WBS: Velocity Evidence Indicator   :        0.00     (Unlikely)
WBS: Distance Evidence Indicator   :        0.05     (Unlikely)
Binarity Total Evidence Indicator  :        0.01     (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) :  2.08 : Medium
RUWE probability for a binary system (Star B) :  1.01 : 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     30.372    0.017     307.893    0.031
1901.0     30.373    0.017     307.890    0.030
1902.0     30.375    0.017     307.886    0.030
1903.0     30.376    0.016     307.883    0.030
1904.0     30.378    0.016     307.879    0.030
1905.0     30.379    0.016     307.876    0.029
1906.0     30.381    0.016     307.872    0.029
1907.0     30.382    0.016     307.869    0.029
1908.0     30.384    0.016     307.865    0.028
1909.0     30.385    0.016     307.862    0.028
1910.0     30.387    0.015     307.858    0.028
1911.0     30.388    0.015     307.855    0.028
1912.0     30.390    0.015     307.851    0.027
1913.0     30.391    0.015     307.848    0.027
1914.0     30.393    0.015     307.844    0.027
1915.0     30.394    0.015     307.841    0.027
1916.0     30.396    0.015     307.837    0.026
1917.0     30.397    0.014     307.834    0.026
1918.0     30.399    0.014     307.830    0.026
1919.0     30.400    0.014     307.827    0.026
1920.0     30.402    0.014     307.823    0.025
1921.0     30.403    0.014     307.820    0.025
1922.0     30.405    0.014     307.816    0.025
1923.0     30.406    0.014     307.813    0.025
1924.0     30.408    0.013     307.809    0.024
1925.0     30.409    0.013     307.806    0.024
1926.0     30.411    0.013     307.802    0.024
1927.0     30.412    0.013     307.798    0.023
1928.0     30.414    0.013     307.795    0.023
1929.0     30.415    0.013     307.791    0.023
1930.0     30.417    0.013     307.788    0.023
1931.0     30.418    0.012     307.784    0.022
1932.0     30.420    0.012     307.781    0.022
1933.0     30.421    0.012     307.777    0.022
1934.0     30.423    0.012     307.774    0.022
1935.0     30.424    0.012     307.770    0.021
1936.0     30.426    0.012     307.767    0.021
1937.0     30.427    0.012     307.763    0.021
1938.0     30.429    0.011     307.760    0.021
1939.0     30.430    0.011     307.756    0.020
1940.0     30.432    0.011     307.753    0.020
1941.0     30.433    0.011     307.749    0.020
1942.0     30.435    0.011     307.746    0.019
1943.0     30.436    0.011     307.742    0.019
1944.0     30.438    0.010     307.739    0.019
1945.0     30.439    0.010     307.735    0.019
1946.0     30.441    0.010     307.732    0.018
1947.0     30.442    0.010     307.728    0.018
1948.0     30.444    0.010     307.725    0.018
1949.0     30.445    0.010     307.721    0.018
1950.0     30.447    0.010     307.718    0.017
1951.0     30.448    0.009     307.714    0.017
1952.0     30.450    0.009     307.711    0.017
1953.0     30.451    0.009     307.707    0.017
1954.0     30.453    0.009     307.704    0.016
1955.0     30.454    0.009     307.700    0.016
1956.0     30.456    0.009     307.697    0.016
1957.0     30.457    0.009     307.693    0.016
1958.0     30.459    0.008     307.690    0.015
1959.0     30.460    0.008     307.686    0.015
1960.0     30.462    0.008     307.683    0.015
1961.0     30.464    0.008     307.679    0.014
1962.0     30.465    0.008     307.676    0.014
1963.0     30.467    0.008     307.672    0.014
1964.0     30.468    0.008     307.669    0.014
1965.0     30.470    0.007     307.665    0.013
1966.0     30.471    0.007     307.662    0.013
1967.0     30.473    0.007     307.658    0.013
1968.0     30.474    0.007     307.655    0.013
1969.0     30.476    0.007     307.651    0.012
1970.0     30.477    0.007     307.648    0.012
1971.0     30.479    0.007     307.644    0.012
1972.0     30.480    0.006     307.641    0.012
1973.0     30.482    0.006     307.637    0.011
1974.0     30.483    0.006     307.634    0.011
1975.0     30.485    0.006     307.630    0.011
1976.0     30.486    0.006     307.627    0.011
1977.0     30.488    0.006     307.623    0.010
1978.0     30.489    0.006     307.620    0.010
1979.0     30.491    0.005     307.616    0.010
1980.0     30.492    0.005     307.613    0.009
1981.0     30.494    0.005     307.609    0.009
1982.0     30.495    0.005     307.606    0.009
1983.0     30.497    0.005     307.602    0.009
1984.0     30.498    0.005     307.599    0.008
1985.0     30.500    0.005     307.595    0.008
1986.0     30.501    0.004     307.592    0.008
1987.0     30.503    0.004     307.588    0.008
1988.0     30.504    0.004     307.585    0.007
1989.0     30.506    0.004     307.582    0.007
1990.0     30.507    0.004     307.578    0.007
1991.0     30.509    0.004     307.575    0.007
1992.0     30.510    0.003     307.571    0.006
1993.0     30.512    0.003     307.568    0.006
1994.0     30.513    0.003     307.564    0.006
1995.0     30.515    0.003     307.561    0.006
1996.0     30.516    0.003     307.557    0.005
1997.0     30.518    0.003     307.554    0.005
1998.0     30.519    0.003     307.550    0.005
1999.0     30.521    0.002     307.547    0.004
2000.0     30.522    0.002     307.543    0.004
2001.0     30.524    0.002     307.540    0.004
2002.0     30.525    0.002     307.536    0.004
2003.0     30.527    0.002     307.533    0.003
2004.0     30.528    0.002     307.529    0.003
2005.0     30.530    0.002     307.526    0.003
2006.0     30.531    0.001     307.522    0.003
2007.0     30.533    0.001     307.519    0.002
2008.0     30.534    0.001     307.515    0.002
2009.0     30.536    0.001     307.512    0.002
2010.0     30.538    0.001     307.508    0.002
2011.0     30.539    0.001     307.505    0.001
2012.0     30.541    0.001     307.501    0.001
2013.0     30.542    0.000     307.498    0.001
2014.0     30.544    0.000     307.494    0.001
2015.0     30.545    0.000     307.491    0.000
2016.0     30.547    0.000     307.487    0.000
2017.0     30.548    0.000     307.484    0.000
2018.0     30.550    0.000     307.480    0.001
2019.0     30.551    0.000     307.477    0.001
2020.0     30.553    0.001     307.474    0.001
2021.0     30.554    0.001     307.470    0.001
2022.0     30.556    0.001     307.467    0.002
2023.0     30.557    0.001     307.463    0.002
2024.0     30.559    0.001     307.460    0.002
2025.0     30.560    0.001     307.456    0.002
2026.0     30.562    0.001     307.453    0.003
2027.0     30.563    0.002     307.449    0.003
2028.0     30.565    0.002     307.446    0.003
2029.0     30.566    0.002     307.442    0.003
2030.0     30.568    0.002     307.439    0.004
2031.0     30.569    0.002     307.435    0.004
2032.0     30.571    0.002     307.432    0.004
2033.0     30.572    0.002     307.428    0.004
2034.0     30.574    0.003     307.425    0.005
2035.0     30.575    0.003     307.421    0.005
2036.0     30.577    0.003     307.418    0.005
2037.0     30.578    0.003     307.414    0.005
2038.0     30.580    0.003     307.411    0.006
2039.0     30.581    0.003     307.408    0.006
2040.0     30.583    0.003     307.404    0.006
2041.0     30.584    0.004     307.401    0.007
2042.0     30.586    0.004     307.397    0.007
2043.0     30.588    0.004     307.394    0.007
2044.0     30.589    0.004     307.390    0.007
2045.0     30.591    0.004     307.387    0.008
2046.0     30.592    0.004     307.383    0.008
2047.0     30.594    0.005     307.380    0.008
2048.0     30.595    0.005     307.376    0.008
2049.0     30.597    0.005     307.373    0.009
2050.0     30.598    0.005     307.369    0.009
2051.0     30.600    0.005     307.366    0.009
2052.0     30.601    0.005     307.362    0.009
2053.0     30.603    0.005     307.359    0.010
2054.0     30.604    0.006     307.355    0.010
2055.0     30.606    0.006     307.352    0.010
2056.0     30.607    0.006     307.349    0.010
2057.0     30.609    0.006     307.345    0.011
2058.0     30.610    0.006     307.342    0.011
2059.0     30.612    0.006     307.338    0.011
2060.0     30.613    0.006     307.335    0.012
2061.0     30.615    0.007     307.331    0.012
2062.0     30.616    0.007     307.328    0.012
2063.0     30.618    0.007     307.324    0.012
2064.0     30.619    0.007     307.321    0.013
2065.0     30.621    0.007     307.317    0.013
2066.0     30.622    0.007     307.314    0.013
2067.0     30.624    0.007     307.310    0.013
2068.0     30.625    0.008     307.307    0.014
2069.0     30.627    0.008     307.304    0.014
2070.0     30.629    0.008     307.300    0.014
2071.0     30.630    0.008     307.297    0.014
2072.0     30.632    0.008     307.293    0.015
2073.0     30.633    0.008     307.290    0.015
2074.0     30.635    0.008     307.286    0.015
2075.0     30.636    0.009     307.283    0.015
2076.0     30.638    0.009     307.279    0.016
2077.0     30.639    0.009     307.276    0.016
2078.0     30.641    0.009     307.272    0.016
2079.0     30.642    0.009     307.269    0.016
2080.0     30.644    0.009     307.265    0.017
2081.0     30.645    0.009     307.262    0.017
2082.0     30.647    0.010     307.259    0.017
2083.0     30.648    0.010     307.255    0.017
2084.0     30.650    0.010     307.252    0.018
2085.0     30.651    0.010     307.248    0.018
2086.0     30.653    0.010     307.245    0.018
2087.0     30.654    0.010     307.241    0.019
2088.0     30.656    0.010     307.238    0.019
2089.0     30.657    0.011     307.234    0.019
2090.0     30.659    0.011     307.231    0.019
2091.0     30.660    0.011     307.227    0.020
2092.0     30.662    0.011     307.224    0.020
2093.0     30.664    0.011     307.221    0.020
2094.0     30.665    0.011     307.217    0.020
2095.0     30.667    0.012     307.214    0.021
2096.0     30.668    0.012     307.210    0.021
2097.0     30.670    0.012     307.207    0.021
2098.0     30.671    0.012     307.203    0.021
2099.0     30.673    0.012     307.200    0.022
2100.0     30.674    0.012     307.196    0.022




Measurements for STF 1268

WDS ID      Discovr     Comp  #    Sep      PA       Epoch      Obs  Telescope     Camera    Note
-------------------------------------------------------------------------------------------------
08467+2846  STF 1268          1    30.55"   307.5°   B2023.305  HWI  120/900 APO   ASI120MC  

-- Image of STF-1268-taken with Equinox 120/900 APO --


WDS record for STF 1268
wds_id                       : 08467+2846
discoverer_code              : STF
discoverer_number            : 1268
discoverer_components        : 
date_first                   : 1777
date_last                    : 2021
num_of_obs                   : 133
pa_first                     : 302
pa_last                      : 308
sep_first                    : 31.0
sep_last                     : 30.6
mag_primary                  : 4.13
mag_secondary                : 5.99
spectral_type                : G8III+A2V
primary_proper_motion_RA     : -22
primary_proper_motion_DEC    : -44
secondary_proper_motion_RA   : -24
secondary_proper_motion_DEC  : -44
dm_number                    : +29 1824
notes                        : NT
precise_coordinate           : 084641.82+284535.6
                             : 08:46:41.82 +28:45:35.6

WDS Notes:
----------
N: Notes found in WDSNOT MEMO of WDS
T: Similar parallax/proper motion: physical



Parsed GAIA Input Data
Click to expand/collapse the Gaia Input Data:
Star A - gaiadr3.gaia_source
solution_id = 1636148068921376768
designation = Gaia DR3 705156050012755712
source_id = 705156050012755712
random_index = 631446130
ref_epoch = 2016.0
ra = 131.6741399256985
ra_error = 0.11199858
dec = 28.759698916431567
dec_error = 0.07110505
parallax = 9.412396164467594
parallax_error = 0.16209854
parallax_over_error = 58.065887
pm = 48.956375
pmra = -22.07023958033676
pmra_error = 0.14921115
pmdec = -43.69932798516403
pmdec_error = 0.12965661
ra_dec_corr = -0.31640625
ra_parallax_corr = -0.14729914
ra_pmra_corr = -0.12399849
ra_pmdec_corr = 0.3189067
dec_parallax_corr = 0.06333745
dec_pmra_corr = 0.1797143
dec_pmdec_corr = 0.08625634
parallax_pmra_corr = 0.47901732
parallax_pmdec_corr = -0.45075697
pmra_pmdec_corr = -0.5596788
astrometric_n_obs_al = 349
astrometric_n_obs_ac = 349
astrometric_n_good_obs_al = 332
astrometric_n_bad_obs_al = 17
astrometric_gof_al = 24.055168
astrometric_chi2_al = 35502.387
astrometric_excess_noise = 0.9427592
astrometric_excess_noise_sig = 1406.3712
astrometric_params_solved = 95
astrometric_primary_flag = false
pseudocolour = 1.5161155
pseudocolour_error = 0.022977429
ra_pseudocolour_corr = 0.107355095
dec_pseudocolour_corr = -0.11948438
parallax_pseudocolour_corr = -0.11856401
pmra_pseudocolour_corr = -0.1802198
pmdec_pseudocolour_corr = 0.15504703
astrometric_matched_transits = 40
visibility_periods_used = 17
astrometric_sigma5d_max = 0.25253657
matched_transits = 44
new_matched_transits = 44
matched_transits_removed = 0
ipd_gof_harmonic_amplitude = 0.028335752
ipd_gof_harmonic_phase = 136.65283
ipd_frac_multi_peak = 7
ipd_frac_odd_win = 0
ruwe = 2.0760045
duplicated_source = false
phot_g_n_obs = 330
phot_g_mean_flux = 577634141.9822754
phot_g_mean_flux_error = 497471.8
phot_g_mean_flux_over_error = 1161.1394
phot_g_mean_mag = 3.7832348
phot_bp_n_obs = 41
phot_bp_mean_flux = 262957439.51788345
phot_bp_mean_flux_error = 1008572.94
phot_bp_mean_flux_over_error = 260.7223
phot_bp_mean_mag = 4.2888284
phot_rp_n_obs = 40
phot_rp_mean_flux = 442846239.0197272
phot_rp_mean_flux_error = 940058.6
phot_rp_mean_flux_over_error = 471.08365
phot_rp_mean_mag = 3.1322632
phot_bp_rp_excess_factor = 1.221887
phot_bp_n_contaminated_transits = 0
phot_bp_n_blended_transits = 0
phot_rp_n_contaminated_transits = 0
phot_rp_n_blended_transits = 0
phot_proc_mode = 0
bp_rp = 1.1565652
bp_g = 0.50559354
g_rp = 0.65097165
radial_velocity = 15.661229
radial_velocity_error = 0.13521533
rv_method_used = 1
rv_nb_transits = 3
rv_nb_deblended_transits = 0
rv_visibility_periods_used = 3
rv_expected_sig_to_noise = 947.7824
rv_chisq_pvalue = 0.706793
rv_time_duration = 783.22906
rv_amplitude_robust = 0.19485569
rv_template_teff = 5500.0
rv_template_logg = 3.5
rv_template_fe_h = 0.0
rv_atm_param_origin = 333
grvs_mag = 2.937348
grvs_mag_error = 0.01151727
grvs_mag_nb_transits = 3
phot_variable_flag = NOT_AVAILABLE
l = 195.8834943258425
b = 36.54341731067133
ecl_lon = 126.34610349172684
ecl_lat = 10.426290429634394
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 = 1.0291891e-13
classprob_dsc_combmod_galaxy = 5.140748e-13
classprob_dsc_combmod_star = 0.9999113
    Star B - gaiadr3.gaia_source
solution_id = 1636148068921376768
designation = Gaia DR3 705156256170201856
source_id = 705156256170201856
random_index = 1012985823
ref_epoch = 2016.0
ra = 131.66645928051452
ra_error = 0.026344584
dec = 28.764862667494732
dec_error = 0.016289257
parallax = 9.672006489463676
parallax_error = 0.036211777
parallax_over_error = 267.0956
pm = 50.52978
pmra = -24.396676263666347
pmra_error = 0.033761088
pmdec = -44.24998273708401
pmdec_error = 0.026713496
ra_dec_corr = -0.224444
ra_parallax_corr = -0.009960119
ra_pmra_corr = 0.057390165
ra_pmdec_corr = 0.21068676
dec_parallax_corr = -0.08527865
dec_pmra_corr = 0.114962325
dec_pmdec_corr = 0.13964543
parallax_pmra_corr = 0.41954133
parallax_pmdec_corr = -0.42016265
pmra_pmdec_corr = -0.35665387
astrometric_n_obs_al = 433
astrometric_n_obs_ac = 433
astrometric_n_good_obs_al = 431
astrometric_n_bad_obs_al = 2
astrometric_gof_al = 0.28988916
astrometric_chi2_al = 3583.2498
astrometric_excess_noise = 0.23995098
astrometric_excess_noise_sig = 81.872215
astrometric_params_solved = 31
astrometric_primary_flag = false
nu_eff_used_in_astrometry = 1.7397845
astrometric_matched_transits = 49
visibility_periods_used = 20
astrometric_sigma5d_max = 0.05198122
matched_transits = 52
new_matched_transits = 8
matched_transits_removed = 6
ipd_gof_harmonic_amplitude = 0.029870272
ipd_gof_harmonic_phase = 154.65416
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 1.0091629
duplicated_source = false
phot_g_n_obs = 451
phot_g_mean_flux = 44355469.05866417
phot_g_mean_flux_error = 12778.115
phot_g_mean_flux_over_error = 3471.2058
phot_g_mean_mag = 6.5699987
phot_bp_n_obs = 45
phot_bp_mean_flux = 31903881.180708162
phot_bp_mean_flux_error = 24358.66
phot_bp_mean_flux_over_error = 1309.7551
phot_bp_mean_mag = 6.5789332
phot_rp_n_obs = 43
phot_rp_mean_flux = 19443060.766080745
phot_rp_mean_flux_error = 9287.98
phot_rp_mean_flux_over_error = 2093.3572
phot_rp_mean_mag = 6.525984
phot_bp_rp_excess_factor = 1.1576236
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 = 0.05294943
bp_g = 0.008934498
g_rp = 0.04401493
radial_velocity = 12.242618
radial_velocity_error = 0.5565327
rv_method_used = 1
rv_nb_transits = 27
rv_nb_deblended_transits = 0
rv_visibility_periods_used = 16
rv_expected_sig_to_noise = 542.5882
rv_renormalised_gof = 1.6854627
rv_chisq_pvalue = 0.07423245
rv_time_duration = 971.7476
rv_amplitude_robust = 12.050764
rv_template_teff = 9000.0
rv_template_logg = 4.5
rv_template_fe_h = 0.25
rv_atm_param_origin = 555
vbroad = 149.32744
vbroad_error = 3.3374245
vbroad_nb_transits = 25
grvs_mag = 6.494279
grvs_mag_error = 0.004579902
grvs_mag_nb_transits = 27
rvs_spec_sig_to_noise = 613.52295
phot_variable_flag = NOT_AVAILABLE
l = 195.87523935657657
b = 36.53812482106097
ecl_lon = 126.33809768447892
ecl_lat = 10.429453471003859
in_qso_candidates = false
in_galaxy_candidates = false
non_single_star = 0
has_xp_continuous = true
has_xp_sampled = true
has_rvs = true
has_epoch_photometry = false
has_epoch_rv = false
has_mcmc_gspphot = true
has_mcmc_msc = true
in_andromeda_survey = false
classprob_dsc_combmod_quasar = 1.3609609e-13
classprob_dsc_combmod_galaxy = 6.7979314e-13
classprob_dsc_combmod_star = 0.9966286
teff_gspphot = 10124.909
teff_gspphot_lower = 10095.415
teff_gspphot_upper = 10152.627
logg_gspphot = 4.1274
logg_gspphot_lower = 4.1231
logg_gspphot_upper = 4.1334
mh_gspphot = -1.4806
mh_gspphot_lower = -1.4958
mh_gspphot_upper = -1.3793
distance_gspphot = 103.4214
distance_gspphot_lower = 103.0119
distance_gspphot_upper = 103.8463
azero_gspphot = 0.1667
azero_gspphot_lower = 0.1637
azero_gspphot_upper = 0.1696
ag_gspphot = 0.1603
ag_gspphot_lower = 0.1573
ag_gspphot_upper = 0.1631
ebpminrp_gspphot = 0.0853
ebpminrp_gspphot_lower = 0.0837
ebpminrp_gspphot_upper = 0.0868
libname_gspphot = A
- gaiadr3.astrophysical_parameters
solution_id = 1636148068921376768
source_id = 705156050012755712
classprob_dsc_combmod_quasar = 1.0291891e-13
classprob_dsc_combmod_galaxy = 5.140748e-13
classprob_dsc_combmod_star = 0.9999113
classprob_dsc_combmod_whitedwarf = 1.5630549e-09
classprob_dsc_combmod_binarystar = 8.8687455e-05
classprob_dsc_specmod_quasar = 0.0
classprob_dsc_specmod_galaxy = 0.0
classprob_dsc_specmod_star = 0.99120057
classprob_dsc_specmod_whitedwarf = 7.727238e-06
classprob_dsc_specmod_binarystar = 0.008791724
classprob_dsc_allosmod_quasar = 0.0
classprob_dsc_allosmod_galaxy = 0.0
classprob_dsc_allosmod_star = 1.0
teff_gspspec = 4883.0
teff_gspspec_lower = 4876.0
teff_gspspec_upper = 4893.0
logg_gspspec = 1.8
logg_gspspec_lower = 1.77
logg_gspspec_upper = 1.83
mh_gspspec = -0.07
mh_gspspec_lower = -0.08
mh_gspspec_upper = -0.05
alphafe_gspspec = -0.05
alphafe_gspspec_lower = -0.06
alphafe_gspspec_upper = -0.05
fem_gspspec = -0.26
fem_gspspec_lower = -0.31
fem_gspspec_upper = -0.19
fem_gspspec_nlines = 8
fem_gspspec_linescatter = 0.15
sife_gspspec = -0.16
sife_gspspec_lower = -0.23
sife_gspspec_upper = -0.09
sife_gspspec_nlines = 3
sife_gspspec_linescatter = 0.02
cafe_gspspec = -0.05
cafe_gspspec_lower = -0.06
cafe_gspspec_upper = -0.05
cafe_gspspec_nlines = 7
cafe_gspspec_linescatter = 0.02
tife_gspspec = -0.16
tife_gspspec_lower = -0.19
tife_gspspec_upper = -0.1
tife_gspspec_nlines = 2
tife_gspspec_linescatter = 0.02
mgfe_gspspec = -0.04
mgfe_gspspec_lower = -0.08
mgfe_gspspec_upper = 0.02
mgfe_gspspec_nlines = 1
mgfe_gspspec_linescatter = 0.0
nfe_gspspec = -0.06
nfe_gspspec_lower = -0.08
nfe_gspspec_upper = -0.05
nfe_gspspec_nlines = 1
nfe_gspspec_linescatter = 0.0
cefe_gspspec = 0.05
cefe_gspspec_lower = -0.13
cefe_gspspec_upper = 0.29
cefe_gspspec_nlines = 1
cefe_gspspec_linescatter = 0.0
nife_gspspec = -0.15
nife_gspspec_lower = -0.22
nife_gspspec_upper = -0.07
nife_gspspec_nlines = 1
nife_gspspec_linescatter = 0.0
dib_gspspec_lambda = 862.5163
dib_gspspec_lambda_uncertainty = 0.006583328
dibew_gspspec = 0.017
dibew_gspspec_uncertainty = 0.001
dibewnoise_gspspec_uncertainty = 0.0013
dibp0_gspspec = -0.018
dibp2_gspspec = 0.3794
dibp2_gspspec_uncertainty = 0.0912
dibqf_gspspec = 5
flags_gspspec = 00000000000001000009900009900991099229995
logchisq_gspspec = -4.112936
ew_espels_halpha = -0.03511653
ew_espels_halpha_uncertainty = 0.015824769
ew_espels_halpha_flag = 0
ew_espels_halpha_model = 0.048842
flags_esphs = 94
spectraltype_esphs = K
mh_msc = 0.49465954
mh_msc_upper = 0.5
mh_msc_lower = -0.57589614
azero_msc = 0.14313391
azero_msc_upper = 0.46413353
azero_msc_lower = 0.0
distance_msc = 13.155642
distance_msc_upper = 31.66604
distance_msc_lower = 10.0
teff_msc1 = 5063.605
teff_msc1_upper = 5844.8403
teff_msc1_lower = 3930.1821
teff_msc2 = 4601.6763
teff_msc2_upper = 7492.057
teff_msc2_lower = 4569.821
logg_msc1 = 3.8417141
logg_msc1_upper = 5.0893536
logg_msc1_lower = 2.5670164
logg_msc2 = 4.5254884
logg_msc2_upper = 5.2
logg_msc2_lower = 2.0
ag_msc = 0.112170085
ag_msc_upper = 0.3766876
ag_msc_lower = 0.002005577
logposterior_msc = -83680.375
mcmcaccept_msc = 0.2382339
mcmcdrift_msc = 0.06752892
flags_msc = 1
    - gaiadr3.astrophysical_parameters
solution_id = 1636148068921376768
source_id = 705156256170201856
classprob_dsc_combmod_quasar = 1.3609609e-13
classprob_dsc_combmod_galaxy = 6.7979314e-13
classprob_dsc_combmod_star = 0.9966286
classprob_dsc_combmod_whitedwarf = 4.279019e-08
classprob_dsc_combmod_binarystar = 0.0033713146
classprob_dsc_specmod_quasar = 0.0
classprob_dsc_specmod_galaxy = 0.0
classprob_dsc_specmod_star = 0.74710727
classprob_dsc_specmod_whitedwarf = 0.00016016896
classprob_dsc_specmod_binarystar = 0.25273255
classprob_dsc_allosmod_quasar = 0.0
classprob_dsc_allosmod_galaxy = 0.0
classprob_dsc_allosmod_star = 1.0
teff_gspphot = 10124.909
teff_gspphot_lower = 10095.415
teff_gspphot_upper = 10152.627
logg_gspphot = 4.1274
logg_gspphot_lower = 4.1231
logg_gspphot_upper = 4.1334
mh_gspphot = -1.4806
mh_gspphot_lower = -1.4958
mh_gspphot_upper = -1.3793
distance_gspphot = 103.4214
distance_gspphot_lower = 103.0119
distance_gspphot_upper = 103.8463
azero_gspphot = 0.1667
azero_gspphot_lower = 0.1637
azero_gspphot_upper = 0.1696
ag_gspphot = 0.1603
ag_gspphot_lower = 0.1573
ag_gspphot_upper = 0.1631
abp_gspphot = 0.188
abp_gspphot_lower = 0.1845
abp_gspphot_upper = 0.1912
arp_gspphot = 0.1027
arp_gspphot_lower = 0.1008
arp_gspphot_upper = 0.1045
ebpminrp_gspphot = 0.0853
ebpminrp_gspphot_lower = 0.0837
ebpminrp_gspphot_upper = 0.0868
mg_gspphot = 1.3113
mg_gspphot_lower = 1.3012
mg_gspphot_upper = 1.3206
radius_gspphot = 1.8266
radius_gspphot_lower = 1.8192
radius_gspphot_upper = 1.8345
logposterior_gspphot = -4085.0571
mcmcaccept_gspphot = 0.47075236
libname_gspphot = A
ew_espels_halpha = 0.506337
ew_espels_halpha_uncertainty = 0.01958718
ew_espels_halpha_flag = 0
ew_espels_halpha_model = 0.56222
flags_esphs = 91
spectraltype_esphs = A
radius_flame = 1.8290677
radius_flame_lower = 1.7912691
radius_flame_upper = 1.8668956
lum_flame = 31.656982
lum_flame_lower = 31.327608
lum_flame_upper = 31.990347
mass_flame = 2.3188884
mass_flame_lower = 2.2782507
mass_flame_upper = 2.3595157
flags_flame = 00
evolstage_flame = 137
gravredshift_flame = 0.57112694
gravredshift_flame_lower = 0.56797296
gravredshift_flame_upper = 0.5769421
bc_flame = -0.35814103
mh_msc = -0.09987064
mh_msc_upper = -0.09906165
mh_msc_lower = -0.100544766
azero_msc = 0.09831929
azero_msc_upper = 0.105632186
azero_msc_lower = 0.089617014
distance_msc = 135.2792
distance_msc_upper = 138.56503
distance_msc_lower = 131.62366
teff_msc1 = 7597.036
teff_msc1_upper = 7612.407
teff_msc1_lower = 7585.381
teff_msc2 = 7596.054
teff_msc2_upper = 7621.7476
teff_msc2_lower = 7580.3364
logg_msc1 = 3.8945622
logg_msc1_upper = 3.9229698
logg_msc1_lower = 3.8723583
logg_msc2 = 3.8983192
logg_msc2_upper = 3.9099088
logg_msc2_lower = 3.887662
ag_msc = 0.089619234
ag_msc_upper = 0.096292496
ag_msc_lower = 0.081590936
logposterior_msc = -207181.1
mcmcaccept_msc = 0.34095466
mcmcdrift_msc = 0.2394176
flags_msc = 1
neuron_oa_id = 202105281205440057
neuron_oa_dist = 2.8602652e-05
neuron_oa_dist_percentile_rank = 75
flags_oa = 0013




Observation Date:


Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2026. Unless otherwise noted, all output generated by the Double Star Calculator including orbit diagrams, ephemerides, and analytical reports is licensed under CC BY 4.0.


Acknowledgements
The Double Star Calculator makes use of data from the European Space Agency (ESA) mission Gaia, processed by the Gaia Data Processing and Analysis Consortium (DPAC). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement. Additionally, it incorporates data from the Washington Double Star Catalog, maintained at the U.S. Naval Observatory, and makes use of the Aladin Sky Atlas developed at CDS, Strasbourg Observatory, France.


Report Information
Double Star Calculator: Version 1.2 ($Rev: 2591 $)
Report created: 2026-09-09 08:30:08 +0200



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