Double Star Calculator - Results


Discoverer & Number:    STF 2194 AB
Gaia Source ID - Star A          : 4581621212996277248     Simbad
Gaia Source ID - Star B          : 4581621217294978176     Simbad
Observation Epoch : J2022.479 / 2022-06-25 Angular Separation : 16.245 ± 0.0002 arcsec Position Angle : 7.04 ± 0.0004 degree
Star A/B Epoch : J2016.000 / J2016.000 Angular Separation : 16.249 < 0.0001 arcsec Position Angle : 7.05 < 0.0001 degree Projected Separation : 3041.62 au Spatial Separation : 1.43 ± 2.44 ly Spatial Separation : 90613.21 ± 154265.05 au Parallax Significance (RI) : 0.59 σ ΔProper Motion Angle : 0.53 ± 0.02 degree ΔTotal Proper Motion : 0.49 ± 0.02 mas/yr ΔTangential Velocity : 0.55 ± 0.20 km/s ΔRadial Velocity : 9.01 ± 3.70 km/s ΔSpeed (scalar) : 5.34 ± 1.81 km/s ΔRelative Velocity (3D) : 9.04 ± 3.69 km/s

Aladin Lite Sky Atlas



Star A
Gaia Source ID                   : 4581621212996277248           VizieR
Epoch : J2016.000 Right Ascension (RA) : 17h 41m 5.46s Declination (Dec) : 24° 30' 48.57" Distance : 187.40 ± 0.59 pc Distance : 611.23 ± 1.91 ly Magnitude (G-band) : 6.03 mag Absolute Magnitude : -0.74 ± 0.01 mag Stellar Extinction : 0.40 ± <0.01 mag Spectral Type (BP/RP) : K Bolometric correction : -0.70 mag Luminosity : 296.53 + 1.95 / − 1.94 L☉ Log(Luminosity) : 2.47206 Effective temperature (Teff) : 4850.10 + 2.30 / - 2.43 K Log(Teff) : 3.68575 Mass estimation : 4.33 M☉ RUWE : 0.99 Position Angle of Proper Motion : 341.05 ± 0.01 degree Total Proper Motion : 57.09 ± 0.02 mas/yr Tangential Velocity : 50.72 ± 0.16 km/s Radial Velocity (Gaia) : -37.01 ± 0.12 km/s Space Velocity : 62.79 ± 0.15 km/s

Star A - Selected astrophysical parameters
DSC-Combmod binary star          :       0.00
DSC-Specmod binary star          :       0.00
Radius from GSP-Phot Aeneas      :      17.99  ±   0.07          R☉
Spectral type from ESP-ELS       :          K
Radius of the star from FLAME    :      17.94  ±   0.36          R☉
Bolometric correction            :      -0.04                    mag
Luminosity of the star (FLAME)   :     160.45  ±   0.97          L☉
Mass of the star from FLAME      :       3.50  ±   0.11          M☉
FLAME quality indicators         :         10
  Quality                        :       Giant (Mass/Age uncertainty 20-30%)
  Source                         :       Parallax used
Evolutionary stage from FLAME    :        504      Red Giant Branch (early)

Star A - Double Star Quality Metrics
Parallax over error :    320.145 : very good
RUWE                :      0.990 : good astrometric fit (single star)
Non Single Star     :            : Single Star
Duplicated source   :      false : single source
G magnitude         :      6.026 : G > 3 mag, photometry reliable
Excess noise        :      0.125 : Good fit
  Significance      :     26.352 :   Minor noise, likely negligible
BP-RP excess factor :      1.252 : photometry consistent
Visibility periods  :         26 : high, indicates well observed star
IPD multi-peak frac :         0% : single peak detected
IDP GoF harmonic amp:      0.016 : unobtrusive (single star source)


Star B
Gaia Source ID                   : 4581621217294978176           VizieR
Epoch : J2016.000 Right Ascension (RA) : 17h 41m 5.61s Declination (Dec) : 24° 31' 4.70" Distance : 186.97 ± 0.47 pc Distance : 609.80 ± 1.52 ly Magnitude (G-band) : 9.30 mag Absolute Magnitude : 2.94 ± 0.01 mag Stellar Extinction : 0.00 ± <0.01 mag Spectral Type (BP/RP) : F Bolometric correction : -0.05 mag Luminosity : 5.52 + 0.03 / − 0.03 L☉ Log(Luminosity) : 0.74160 Effective temperature (Teff) : 6312.43 + 6.51 / - 3.50 K Log(Teff) : 3.80020 Mass estimation : 1.55 M☉ RUWE : 0.92 Position Angle of Proper Motion : 340.52 ± 0.01 degree Total Proper Motion : 56.60 ± 0.01 mas/yr Tangential Velocity : 50.16 ± 0.13 km/s Radial Velocity (Simbad) : -28.00 ± 3.70 km/s Bibcode : 2007AN....328..889K Space Velocity : 57.45 ± 1.81 km/s

Star B - Selected astrophysical parameters
DSC-Combmod binary star          :       0.00
DSC-Specmod binary star          :       0.15
Radius from GSP-Phot Aeneas      :       1.87  ±   0.01          R☉
Spectral type from ESP-ELS       :          F
Radius of the star from FLAME    :       1.87  ±   0.04          R☉
Bolometric correction            :       0.05                    mag
Luminosity of the star (FLAME)   :       5.01  ±   0.03          L☉
Mass of the star from FLAME      :       1.38  ±   0.04          M☉
FLAME quality indicators         :         00
  Quality                        :       OK
  Source                         :       Parallax used
Evolutionary stage from FLAME    :        288      Main Sequence (early)

Star B - Double Star Quality Metrics
Parallax over error :    401.063 : very good
RUWE                :      0.920 : good astrometric fit (single star)
Non Single Star     :            : Single Star
Duplicated source   :      false : single source
G magnitude         :      9.297 : G > 3 mag, photometry reliable
Excess noise        :      0.078 : Very good fit
  Significance      :      8.489 :   Reliable single-star astrometry
BP-RP excess factor :      1.192 : photometry consistent
Visibility periods  :         28 : high, indicates well observed star
IPD multi-peak frac :         0% : single peak detected
IDP GoF harmonic amp:      0.006 : 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)          :        0.01     (CPM)

Co-Moving

UWLE for Co-Moving Pairs (3D)      :
===================================
COMOV: Velocity Evidence Indicator :        0.10     (Unlikely)
COMOV: Distance Evidence Indicator :        0.71     (Strong)
Co-Moving Total Evidence Indicator :        0.26     (Weak)

rPM/COMOV Agreement                :                 (Low)

Binarity

Separation, Sigma and Reliability  :
===================================
Projected Separation               :     3041.62     au
Spatial Separation                 :    90613.21     au
  1-Sigma Range                    : [   3041.62,  244878.27] au
  Significance (RI)                :        0.59     σ
  Note: 3D distance not significantly resolved


Proper Motion and Velocity         :
===================================
rPM (Proper Motion Ratio)          :        0.01     (CPM)
ΔRelative Velocity (3D)            :        9.04  ±  3.69   km/s


UWLE for Wide Binaries (3D)        :
===================================
WBS: Velocity Evidence Indicator   :        0.00     (Unlikely)
WBS: Distance Evidence Indicator   :        0.09     (Unlikely)
Binarity Total Evidence Indicator  :        0.00     (Unlikely)


UWLE for Wide Binaries (2D)        :
===================================
WBS: Velocity Evidence Indicator   :        0.00     (Unlikely)
WBS: Distance Evidence Indicator   :        0.13     (Weak)
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

Metallicity (Experimental / Not validated)

Metallicity (Gaia DR3, GSP-Phot)   :
===================================
Metallicity Star A - [M/H]         :      0.0571  ± 0.0021 dex
  Metallicity reliability factor A :        1.00
Metallicity Star B - [M/H]         :     -0.6899  ± 0.0147 dex
  Metallicity reliability factor B :        1.00
Metallicity Difference             :      0.7470           dex
Combined uncertainty               :      0.2105           dex
Sigma-Distance (Z-Score)           :      3.55 σ
  Compatibility                    :  Inconsistent (likely different)

Note: Z-Score calculation accounts for a 0.21 dex systematic uncertainty
      floor based on Gaia DR3 GSP-Phot validation studies

-- Experimental module – results are preliminary and not validated --

RUWE parameters
RUWE probability for a binary system (Star A) :  0.99 : Zero
RUWE probability for a binary system (Star B) :  0.92 : 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     16.327    0.003       7.151    0.007
1901.0     16.327    0.003       7.151    0.007
1902.0     16.326    0.003       7.150    0.007
1903.0     16.325    0.003       7.149    0.007
1904.0     16.325    0.003       7.148    0.007
1905.0     16.324    0.003       7.147    0.006
1906.0     16.323    0.003       7.146    0.006
1907.0     16.323    0.003       7.145    0.006
1908.0     16.322    0.002       7.144    0.006
1909.0     16.321    0.002       7.143    0.006
1910.0     16.321    0.002       7.142    0.006
1911.0     16.320    0.002       7.142    0.006
1912.0     16.319    0.002       7.141    0.006
1913.0     16.319    0.002       7.140    0.006
1914.0     16.318    0.002       7.139    0.006
1915.0     16.317    0.002       7.138    0.006
1916.0     16.317    0.002       7.137    0.006
1917.0     16.316    0.002       7.136    0.006
1918.0     16.315    0.002       7.135    0.006
1919.0     16.315    0.002       7.134    0.006
1920.0     16.314    0.002       7.133    0.006
1921.0     16.313    0.002       7.133    0.006
1922.0     16.313    0.002       7.132    0.005
1923.0     16.312    0.002       7.131    0.005
1924.0     16.311    0.002       7.130    0.005
1925.0     16.311    0.002       7.129    0.005
1926.0     16.310    0.002       7.128    0.005
1927.0     16.309    0.002       7.127    0.005
1928.0     16.308    0.002       7.126    0.005
1929.0     16.308    0.002       7.125    0.005
1930.0     16.307    0.002       7.124    0.005
1931.0     16.306    0.002       7.124    0.005
1932.0     16.306    0.002       7.123    0.005
1933.0     16.305    0.002       7.122    0.005
1934.0     16.304    0.002       7.121    0.005
1935.0     16.304    0.002       7.120    0.005
1936.0     16.303    0.002       7.119    0.005
1937.0     16.302    0.002       7.118    0.005
1938.0     16.302    0.002       7.117    0.005
1939.0     16.301    0.002       7.116    0.004
1940.0     16.300    0.002       7.115    0.004
1941.0     16.300    0.002       7.115    0.004
1942.0     16.299    0.002       7.114    0.004
1943.0     16.298    0.002       7.113    0.004
1944.0     16.298    0.002       7.112    0.004
1945.0     16.297    0.002       7.111    0.004
1946.0     16.296    0.002       7.110    0.004
1947.0     16.296    0.002       7.109    0.004
1948.0     16.295    0.002       7.108    0.004
1949.0     16.294    0.002       7.107    0.004
1950.0     16.294    0.002       7.106    0.004
1951.0     16.293    0.002       7.106    0.004
1952.0     16.292    0.001       7.105    0.004
1953.0     16.292    0.001       7.104    0.004
1954.0     16.291    0.001       7.103    0.004
1955.0     16.290    0.001       7.102    0.004
1956.0     16.290    0.001       7.101    0.003
1957.0     16.289    0.001       7.100    0.003
1958.0     16.288    0.001       7.099    0.003
1959.0     16.288    0.001       7.098    0.003
1960.0     16.287    0.001       7.097    0.003
1961.0     16.286    0.001       7.097    0.003
1962.0     16.286    0.001       7.096    0.003
1963.0     16.285    0.001       7.095    0.003
1964.0     16.284    0.001       7.094    0.003
1965.0     16.284    0.001       7.093    0.003
1966.0     16.283    0.001       7.092    0.003
1967.0     16.282    0.001       7.091    0.003
1968.0     16.282    0.001       7.090    0.003
1969.0     16.281    0.001       7.089    0.003
1970.0     16.280    0.001       7.088    0.003
1971.0     16.280    0.001       7.087    0.003
1972.0     16.279    0.001       7.087    0.003
1973.0     16.278    0.001       7.086    0.003
1974.0     16.278    0.001       7.085    0.002
1975.0     16.277    0.001       7.084    0.002
1976.0     16.276    0.001       7.083    0.002
1977.0     16.276    0.001       7.082    0.002
1978.0     16.275    0.001       7.081    0.002
1979.0     16.274    0.001       7.080    0.002
1980.0     16.273    0.001       7.079    0.002
1981.0     16.273    0.001       7.078    0.002
1982.0     16.272    0.001       7.078    0.002
1983.0     16.271    0.001       7.077    0.002
1984.0     16.271    0.001       7.076    0.002
1985.0     16.270    0.001       7.075    0.002
1986.0     16.269    0.001       7.074    0.002
1987.0     16.269    0.001       7.073    0.002
1988.0     16.268    0.001       7.072    0.002
1989.0     16.267    0.001       7.071    0.002
1990.0     16.267    0.001       7.070    0.002
1991.0     16.266    0.001       7.069    0.001
1992.0     16.265    0.001       7.068    0.001
1993.0     16.265    0.001       7.068    0.001
1994.0     16.264    0.001       7.067    0.001
1995.0     16.263    0.000       7.066    0.001
1996.0     16.263    0.000       7.065    0.001
1997.0     16.262    0.000       7.064    0.001
1998.0     16.261    0.000       7.063    0.001
1999.0     16.261    0.000       7.062    0.001
2000.0     16.260    0.000       7.061    0.001
2001.0     16.259    0.000       7.060    0.001
2002.0     16.259    0.000       7.059    0.001
2003.0     16.258    0.000       7.058    0.001
2004.0     16.257    0.000       7.058    0.001
2005.0     16.257    0.000       7.057    0.001
2006.0     16.256    0.000       7.056    0.001
2007.0     16.255    0.000       7.055    0.001
2008.0     16.255    0.000       7.054    0.000
2009.0     16.254    0.000       7.053    0.000
2010.0     16.253    0.000       7.052    0.000
2011.0     16.253    0.000       7.051    0.000
2012.0     16.252    0.000       7.050    0.000
2013.0     16.251    0.000       7.049    0.000
2014.0     16.251    0.000       7.049    0.000
2015.0     16.250    0.000       7.048    0.000
2016.0     16.249    0.000       7.047    0.000
2017.0     16.249    0.000       7.046    0.000
2018.0     16.248    0.000       7.045    0.000
2019.0     16.247    0.000       7.044    0.000
2020.0     16.247    0.000       7.043    0.000
2021.0     16.246    0.000       7.042    0.000
2022.0     16.245    0.000       7.041    0.000
2023.0     16.245    0.000       7.040    0.000
2024.0     16.244    0.000       7.039    0.000
2025.0     16.243    0.000       7.039    0.001
2026.0     16.243    0.000       7.038    0.001
2027.0     16.242    0.000       7.037    0.001
2028.0     16.241    0.000       7.036    0.001
2029.0     16.241    0.000       7.035    0.001
2030.0     16.240    0.000       7.034    0.001
2031.0     16.239    0.000       7.033    0.001
2032.0     16.238    0.000       7.032    0.001
2033.0     16.238    0.000       7.031    0.001
2034.0     16.237    0.000       7.030    0.001
2035.0     16.236    0.000       7.029    0.001
2036.0     16.236    0.000       7.029    0.001
2037.0     16.235    0.000       7.028    0.001
2038.0     16.234    0.001       7.027    0.001
2039.0     16.234    0.001       7.026    0.001
2040.0     16.233    0.001       7.025    0.001
2041.0     16.232    0.001       7.024    0.001
2042.0     16.232    0.001       7.023    0.002
2043.0     16.231    0.001       7.022    0.002
2044.0     16.230    0.001       7.021    0.002
2045.0     16.230    0.001       7.020    0.002
2046.0     16.229    0.001       7.019    0.002
2047.0     16.228    0.001       7.019    0.002
2048.0     16.228    0.001       7.018    0.002
2049.0     16.227    0.001       7.017    0.002
2050.0     16.226    0.001       7.016    0.002
2051.0     16.226    0.001       7.015    0.002
2052.0     16.225    0.001       7.014    0.002
2053.0     16.224    0.001       7.013    0.002
2054.0     16.224    0.001       7.012    0.002
2055.0     16.223    0.001       7.011    0.002
2056.0     16.222    0.001       7.010    0.002
2057.0     16.222    0.001       7.009    0.002
2058.0     16.221    0.001       7.009    0.002
2059.0     16.220    0.001       7.008    0.003
2060.0     16.220    0.001       7.007    0.003
2061.0     16.219    0.001       7.006    0.003
2062.0     16.218    0.001       7.005    0.003
2063.0     16.218    0.001       7.004    0.003
2064.0     16.217    0.001       7.003    0.003
2065.0     16.216    0.001       7.002    0.003
2066.0     16.216    0.001       7.001    0.003
2067.0     16.215    0.001       7.000    0.003
2068.0     16.214    0.001       6.999    0.003
2069.0     16.214    0.001       6.998    0.003
2070.0     16.213    0.001       6.998    0.003
2071.0     16.212    0.001       6.997    0.003
2072.0     16.212    0.001       6.996    0.003
2073.0     16.211    0.001       6.995    0.003
2074.0     16.210    0.001       6.994    0.003
2075.0     16.210    0.001       6.993    0.003
2076.0     16.209    0.001       6.992    0.004
2077.0     16.208    0.001       6.991    0.004
2078.0     16.208    0.001       6.990    0.004
2079.0     16.207    0.001       6.989    0.004
2080.0     16.206    0.001       6.988    0.004
2081.0     16.206    0.002       6.988    0.004
2082.0     16.205    0.002       6.987    0.004
2083.0     16.204    0.002       6.986    0.004
2084.0     16.204    0.002       6.985    0.004
2085.0     16.203    0.002       6.984    0.004
2086.0     16.202    0.002       6.983    0.004
2087.0     16.201    0.002       6.982    0.004
2088.0     16.201    0.002       6.981    0.004
2089.0     16.200    0.002       6.980    0.004
2090.0     16.199    0.002       6.979    0.004
2091.0     16.199    0.002       6.978    0.004
2092.0     16.198    0.002       6.977    0.004
2093.0     16.197    0.002       6.977    0.005
2094.0     16.197    0.002       6.976    0.005
2095.0     16.196    0.002       6.975    0.005
2096.0     16.195    0.002       6.974    0.005
2097.0     16.195    0.002       6.973    0.005
2098.0     16.194    0.002       6.972    0.005
2099.0     16.193    0.002       6.971    0.005
2100.0     16.193    0.002       6.970    0.005


Measurements for STF 2194 AB
 
WDS ID      Discovr     Comp  #    Sep      PA       Epoch      Obs  Telescope     Camera    Note
-------------------------------------------------------------------------------------------------
17146+1423  STF 2194    AB    1    16.44"   7.0°     B2022.483  HWI  120/900 APO   ASI120MC 

-- Image of STF-2194-AB-taken with Equinox 120/900 APO --


WDS record for STF 2194 AB
wds_id                       : 17411+2431
discoverer_code              : STF
discoverer_number            : 2194
discoverer_components        : AB
date_first                   : 1783
date_last                    : 2024
num_of_obs                   : 69
pa_first                     : 354
pa_last                      : 8
sep_first                    : 14.3
sep_last                     : 16.3
mag_primary                  : 6.51
mag_secondary                : 9.28
spectral_type                : K1III+F0V
primary_proper_motion_RA     : -18
primary_proper_motion_DEC    : 54
secondary_proper_motion_RA   : -18
secondary_proper_motion_DEC  : 53
dm_number                    : +24 3225
notes                        : NT
precise_coordinate           : 174105.50+243047.2
                             : 17:41:05.50 +24:30:47.2

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 4581621212996277248
source_id = 4581621212996277248
random_index = 317716544.0
ref_epoch = 2016.0
ra = 265.2727660931621
ra_error = 0.009789481
dec = 24.513492612079816
dec_error = 0.013543091
parallax = 5.3360425272318555
parallax_error = 0.016667565
parallax_over_error = 320.1453
pm = 57.085735
pmra = -18.539304564310193
pmra_error = 0.013709743
pmdec = 53.99143640756803
pmdec_error = 0.018636689
ra_dec_corr = -0.16412938
ra_parallax_corr = 0.039930798
ra_pmra_corr = -0.1280513
ra_pmdec_corr = 0.11761288
dec_parallax_corr = 0.009532046
dec_pmra_corr = 0.112139866
dec_pmdec_corr = -0.23446223
parallax_pmra_corr = -0.2006277
parallax_pmdec_corr = -0.026748108
pmra_pmdec_corr = -0.13680942
astrometric_n_obs_al = 420
astrometric_n_obs_ac = 420
astrometric_n_good_obs_al = 417
astrometric_n_bad_obs_al = 3
astrometric_gof_al = -0.22715959
astrometric_chi2_al = 1519.6305
astrometric_excess_noise = 0.12470726
astrometric_excess_noise_sig = 26.352093
astrometric_params_solved = 31
astrometric_primary_flag = false
nu_eff_used_in_astrometry = 1.4471494
astrometric_matched_transits = 47
visibility_periods_used = 26
astrometric_sigma5d_max = 0.02634651
matched_transits = 56
new_matched_transits = 21
matched_transits_removed = 20
ipd_gof_harmonic_amplitude = 0.016196156
ipd_gof_harmonic_phase = 149.32686
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 0.99129015
duplicated_source = false
phot_g_n_obs = 489
phot_g_mean_flux = 73176215.87243202
phot_g_mean_flux_error = 13070.784
phot_g_mean_flux_over_error = 5598.4565
phot_g_mean_mag = 6.026442
phot_bp_n_obs = 53
phot_bp_mean_flux = 30423926.96750288
phot_bp_mean_flux_error = 12510.239
phot_bp_mean_flux_over_error = 2431.922
phot_bp_mean_mag = 6.630504
phot_rp_n_obs = 49
phot_rp_mean_flux = 61189006.11720457
phot_rp_mean_flux_error = 67796.24
phot_rp_mean_flux_over_error = 902.5427
phot_rp_mean_mag = 5.281212
phot_bp_rp_excess_factor = 1.2519495
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 = 1.3492923
bp_g = 0.6040621
g_rp = 0.7452302
radial_velocity = -37.014397
radial_velocity_error = 0.119487196
rv_method_used = 1
rv_nb_transits = 30
rv_nb_deblended_transits = 0
rv_visibility_periods_used = 22
rv_expected_sig_to_noise = 1138.3854
rv_chisq_pvalue = 0.26584688
rv_time_duration = 917.77985
rv_amplitude_robust = 0.642601
rv_template_teff = 4500.0
rv_template_logg = 1.5
rv_template_fe_h = -0.25
rv_atm_param_origin = 444
vbroad = 7.500835
vbroad_error = 0.5892549
vbroad_nb_transits = 30
grvs_mag = 4.996452
grvs_mag_error = 0.0054586274
grvs_mag_nb_transits = 30
phot_variable_flag = NOT_AVAILABLE
l = 48.638581330779964
b = 25.712871074958716
ecl_lon = 263.584859883937
ecl_lat = 47.84755824147352
in_qso_candidates = false
in_galaxy_candidates = false
non_single_star = 0
has_xp_continuous = false
has_xp_sampled = false
has_rvs = false
has_epoch_photometry = false
has_epoch_rv = false
has_mcmc_gspphot = false
has_mcmc_msc = false
in_andromeda_survey = false
classprob_dsc_combmod_quasar = 1.0225523e-13
classprob_dsc_combmod_galaxy = 5.1075973e-13
classprob_dsc_combmod_star = 0.999977
teff_gspphot = 4850.103
teff_gspphot_lower = 4847.67
teff_gspphot_upper = 4852.404
logg_gspphot = 2.4161
logg_gspphot_lower = 2.4128
logg_gspphot_upper = 2.4195
mh_gspphot = 0.0571
mh_gspphot_lower = 0.055
mh_gspphot_upper = 0.0593
distance_gspphot = 186.868
distance_gspphot_lower = 186.1891
distance_gspphot_upper = 187.5453
azero_gspphot = 0.5191
azero_gspphot_lower = 0.5164
azero_gspphot_upper = 0.5219
ag_gspphot = 0.4027
ag_gspphot_lower = 0.4006
ag_gspphot_upper = 0.4049
ebpminrp_gspphot = 0.2108
ebpminrp_gspphot_lower = 0.2096
ebpminrp_gspphot_upper = 0.212
libname_gspphot = MARCS
    Star B - gaiadr3.gaia_source
solution_id = 1636148068921376768
designation = Gaia DR3 4581621217294978176
source_id = 4581621217294978176
random_index = 1111174424.0
ref_epoch = 2016.0
ra = 265.2733747013206
ra_error = 0.008773902
dec = 24.517972199108584
dec_error = 0.010276155
parallax = 5.348573328263359
parallax_error = 0.0133359805
parallax_over_error = 401.0634
pm = 56.59591
pmra = -18.876453681257246
pmra_error = 0.0117812045
pmdec = 53.35519030959549
pmdec_error = 0.013794361
ra_dec_corr = -0.05289183
ra_parallax_corr = 0.06450114
ra_pmra_corr = -0.12977673
ra_pmdec_corr = -0.0152314585
dec_parallax_corr = -0.19141583
dec_pmra_corr = 0.053018954
dec_pmdec_corr = -0.18989861
parallax_pmra_corr = -0.32986388
parallax_pmdec_corr = -0.04515414
pmra_pmdec_corr = -0.020051694
astrometric_n_obs_al = 416
astrometric_n_obs_ac = 416
astrometric_n_good_obs_al = 410
astrometric_n_bad_obs_al = 6
astrometric_gof_al = -2.1756172
astrometric_chi2_al = 755.59924
astrometric_excess_noise = 0.07761164
astrometric_excess_noise_sig = 8.489232
astrometric_params_solved = 31
astrometric_primary_flag = false
nu_eff_used_in_astrometry = 1.6065786
astrometric_matched_transits = 47
visibility_periods_used = 28
astrometric_sigma5d_max = 0.019214233
matched_transits = 61
new_matched_transits = 23
matched_transits_removed = 3
ipd_gof_harmonic_amplitude = 0.006018849
ipd_gof_harmonic_phase = 79.44364
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 0.9237373
duplicated_source = false
phot_g_n_obs = 480
phot_g_mean_flux = 3598350.0335979336
phot_g_mean_flux_error = 2777.8882
phot_g_mean_flux_over_error = 1295.3545
phot_g_mean_mag = 9.297109
phot_bp_n_obs = 41
phot_bp_mean_flux = 2112647.661859539
phot_bp_mean_flux_error = 5216.718
phot_bp_mean_flux_over_error = 404.9764
phot_bp_mean_mag = 9.526475
phot_rp_n_obs = 42
phot_rp_mean_flux = 2174990.6153891524
phot_rp_mean_flux_error = 4903.843
phot_rp_mean_flux_over_error = 443.5278
phot_rp_mean_mag = 8.904252
phot_bp_rp_excess_factor = 1.1915567
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 = 0.6222229
bp_g = 0.2293663
g_rp = 0.3928566
phot_variable_flag = VARIABLE
l = 48.64346997507289
b = 25.71385761644283
ecl_lon = 263.5853579928505
ecl_lat = 47.85205952936609
in_qso_candidates = false
in_galaxy_candidates = false
non_single_star = 0
has_xp_continuous = false
has_xp_sampled = false
has_rvs = false
has_epoch_photometry = false
has_epoch_rv = false
has_mcmc_gspphot = false
has_mcmc_msc = false
in_andromeda_survey = false
classprob_dsc_combmod_quasar = 1.1961469e-13
classprob_dsc_combmod_galaxy = 5.974694e-13
classprob_dsc_combmod_star = 0.9982583
teff_gspphot = 6312.4346
teff_gspphot_lower = 6308.939
teff_gspphot_upper = 6318.9424
logg_gspphot = 4.0157
logg_gspphot_lower = 4.0137
logg_gspphot_upper = 4.019
mh_gspphot = -0.6899
mh_gspphot_lower = -0.7036
mh_gspphot_upper = -0.6742
distance_gspphot = 185.7959
distance_gspphot_lower = 184.9479
distance_gspphot_upper = 186.3802
azero_gspphot = 0.0027
azero_gspphot_lower = 0.0006
azero_gspphot_upper = 0.0065
ag_gspphot = 0.0023
ag_gspphot_lower = 0.0005
ag_gspphot_upper = 0.0057
ebpminrp_gspphot = 0.0013
ebpminrp_gspphot_lower = 0.0003
ebpminrp_gspphot_upper = 0.0031
libname_gspphot = MARCS
radial_velocity = -28.0
radial_velocity_error = 3.7
- gaiadr3.astrophysical_parameters
solution_id = 1636148068921376768
source_id = 4581621212996277248
classprob_dsc_combmod_quasar = 1.0225523e-13
classprob_dsc_combmod_galaxy = 5.1075973e-13
classprob_dsc_combmod_star = 0.999977
classprob_dsc_combmod_whitedwarf = 3.6277412e-10
classprob_dsc_combmod_binarystar = 2.3039758e-05
classprob_dsc_specmod_quasar = 0.0
classprob_dsc_specmod_galaxy = 0.0
classprob_dsc_specmod_star = 0.99769944
classprob_dsc_specmod_whitedwarf = 1.7974141e-06
classprob_dsc_specmod_binarystar = 0.0022987835
classprob_dsc_allosmod_quasar = 0.0
classprob_dsc_allosmod_galaxy = 0.0
classprob_dsc_allosmod_star = 1.0
teff_gspphot = 4850.103
teff_gspphot_lower = 4847.67
teff_gspphot_upper = 4852.404
logg_gspphot = 2.4161
logg_gspphot_lower = 2.4128
logg_gspphot_upper = 2.4195
mh_gspphot = 0.0571
mh_gspphot_lower = 0.055
mh_gspphot_upper = 0.0593
distance_gspphot = 186.868
distance_gspphot_lower = 186.1891
distance_gspphot_upper = 187.5453
azero_gspphot = 0.5191
azero_gspphot_lower = 0.5164
azero_gspphot_upper = 0.5219
ag_gspphot = 0.4027
ag_gspphot_lower = 0.4006
ag_gspphot_upper = 0.4049
abp_gspphot = 0.5176
abp_gspphot_lower = 0.5149
abp_gspphot_upper = 0.5204
arp_gspphot = 0.3069
arp_gspphot_lower = 0.3053
arp_gspphot_upper = 0.3085
ebpminrp_gspphot = 0.2108
ebpminrp_gspphot_lower = 0.2096
ebpminrp_gspphot_upper = 0.212
mg_gspphot = -0.7243
mg_gspphot_lower = -0.732
mg_gspphot_upper = -0.7164
radius_gspphot = 17.9924
radius_gspphot_lower = 17.9229
radius_gspphot_upper = 18.0603
logposterior_gspphot = -9118.046
mcmcaccept_gspphot = 0.39893416
libname_gspphot = MARCS
teff_gspspec = 4446.0
teff_gspspec_lower = 4444.0
teff_gspspec_upper = 4448.0
logg_gspspec = 1.63
logg_gspspec_lower = 1.62
logg_gspspec_upper = 1.63
mh_gspspec = -0.33
mh_gspspec_lower = -0.34
mh_gspspec_upper = -0.33
alphafe_gspspec = 0.03
alphafe_gspspec_lower = 0.03
alphafe_gspspec_upper = 0.03
fem_gspspec = -0.14
fem_gspspec_lower = -0.16
fem_gspspec_upper = -0.13
fem_gspspec_nlines = 8
fem_gspspec_linescatter = 0.15
sife_gspspec = -0.05
sife_gspspec_lower = -0.07
sife_gspspec_upper = -0.03
sife_gspspec_nlines = 3
sife_gspspec_linescatter = 0.07
cafe_gspspec = 0.02
cafe_gspspec_lower = 0.02
cafe_gspspec_upper = 0.02
cafe_gspspec_nlines = 7
cafe_gspspec_linescatter = 0.0084
tife_gspspec = 0.01
tife_gspspec_lower = -0.0
tife_gspspec_upper = 0.03
tife_gspspec_nlines = 2
tife_gspspec_linescatter = 0.02
mgfe_gspspec = 0.23
mgfe_gspspec_lower = 0.19
mgfe_gspspec_upper = 0.27
mgfe_gspspec_nlines = 1
mgfe_gspspec_linescatter = 0.0
nfe_gspspec = -0.1
nfe_gspspec_lower = -0.15
nfe_gspspec_upper = -0.05
nfe_gspspec_nlines = 1
nfe_gspspec_linescatter = 0.0
cefe_gspspec = 0.04
cefe_gspspec_lower = -0.15
cefe_gspspec_upper = 0.1
cefe_gspspec_nlines = 1
cefe_gspspec_linescatter = 0.0
nife_gspspec = -0.09
nife_gspspec_lower = -0.13
nife_gspspec_upper = -0.01
nife_gspspec_nlines = 1
nife_gspspec_linescatter = 0.0
dib_gspspec_lambda = 861.7668
dib_gspspec_lambda_uncertainty = 0.0021688866
dibew_gspspec = 0.012
dibew_gspspec_uncertainty = 0.001
dibewnoise_gspspec_uncertainty = -1.0
dibp0_gspspec = -0.017
dibp2_gspspec = 0.2794
dibp2_gspspec_uncertainty = 0.0275
dibqf_gspspec = 5
flags_gspspec = 00000000000001000009900009900991099219995
logchisq_gspspec = -4.303488
ew_espels_halpha = -0.06370765
ew_espels_halpha_uncertainty = 0.015348491
ew_espels_halpha_flag = 1
ew_espels_halpha_model = 0.04275
flags_esphs = 92
spectraltype_esphs = K
radius_flame = 17.94043
radius_flame_lower = 17.577377
radius_flame_upper = 18.303205
lum_flame = 160.45277
lum_flame_lower = 159.46265
lum_flame_upper = 161.40974
mass_flame = 3.5014613
mass_flame_lower = 3.3937273
mass_flame_upper = 3.6086564
age_flame = 0.25035092
age_flame_lower = 0.22123703
age_flame_upper = 0.28101027
flags_flame = 10
evolstage_flame = 504
gravredshift_flame = 0.108764485
gravredshift_flame_lower = 0.10840259
gravredshift_flame_upper = 0.109154046
bc_flame = -0.044284485
mh_msc = 0.4987298
mh_msc_upper = 0.5
mh_msc_lower = 0.47403768
azero_msc = 0.06869023
azero_msc_upper = 0.5131097
azero_msc_lower = 0.0
distance_msc = 31.991833
distance_msc_upper = 34.862087
distance_msc_lower = 26.264637
teff_msc1 = 4574.9717
teff_msc1_upper = 5216.3145
teff_msc1_lower = 3958.3115
teff_msc2 = 4514.089
teff_msc2_upper = 4753.366
teff_msc2_lower = 4346.8525
logg_msc1 = 3.9743037
logg_msc1_upper = 4.1258163
logg_msc1_lower = 3.6629076
logg_msc2 = 5.0581937
logg_msc2_upper = 5.16316
logg_msc2_lower = 4.970117
ag_msc = 0.052368507
ag_msc_upper = 0.3885936
ag_msc_lower = 0.0
logposterior_msc = -1340668.6
mcmcaccept_msc = 0.18338902
mcmcdrift_msc = 0.23596664
flags_msc = 1
    - gaiadr3.astrophysical_parameters
solution_id = 1636148068921376768
source_id = 4581621217294978176
classprob_dsc_combmod_quasar = 1.1961469e-13
classprob_dsc_combmod_galaxy = 5.974694e-13
classprob_dsc_combmod_star = 0.9982583
classprob_dsc_combmod_whitedwarf = 2.3478892e-12
classprob_dsc_combmod_binarystar = 0.0017417321
classprob_dsc_specmod_quasar = 0.0
classprob_dsc_specmod_galaxy = 0.0
classprob_dsc_specmod_star = 0.8514392
classprob_dsc_specmod_whitedwarf = 0.0
classprob_dsc_specmod_binarystar = 0.14856084
classprob_dsc_allosmod_quasar = 0.0
classprob_dsc_allosmod_galaxy = 0.0
classprob_dsc_allosmod_star = 1.0
teff_gspphot = 6312.4346
teff_gspphot_lower = 6308.939
teff_gspphot_upper = 6318.9424
logg_gspphot = 4.0157
logg_gspphot_lower = 4.0137
logg_gspphot_upper = 4.019
mh_gspphot = -0.6899
mh_gspphot_lower = -0.7036
mh_gspphot_upper = -0.6742
distance_gspphot = 185.7959
distance_gspphot_lower = 184.9479
distance_gspphot_upper = 186.3802
azero_gspphot = 0.0027
azero_gspphot_lower = 0.0006
azero_gspphot_upper = 0.0065
ag_gspphot = 0.0023
ag_gspphot_lower = 0.0005
ag_gspphot_upper = 0.0057
abp_gspphot = 0.0029
abp_gspphot_lower = 0.0007
abp_gspphot_upper = 0.007
arp_gspphot = 0.0016
arp_gspphot_lower = 0.0004
arp_gspphot_upper = 0.004
ebpminrp_gspphot = 0.0013
ebpminrp_gspphot_lower = 0.0003
ebpminrp_gspphot_upper = 0.0031
mg_gspphot = 2.944
mg_gspphot_lower = 2.9369
mg_gspphot_upper = 2.953
radius_gspphot = 1.8653
radius_gspphot_lower = 1.8559
radius_gspphot_upper = 1.8714
logposterior_gspphot = -1547.7908
mcmcaccept_gspphot = 0.4754232
libname_gspphot = MARCS
ew_espels_halpha = 0.17713787
ew_espels_halpha_uncertainty = 0.02541858
ew_espels_halpha_flag = 0
ew_espels_halpha_model = 0.192978
flags_esphs = 91
spectraltype_esphs = F
radius_flame = 1.871114
radius_flame_lower = 1.833377
radius_flame_upper = 1.9088893
lum_flame = 5.011781
lum_flame_lower = 4.985728
lum_flame_upper = 5.039383
mass_flame = 1.3769854
mass_flame_lower = 1.3369471
mass_flame_upper = 1.417031
age_flame = 2.7976375
age_flame_lower = 2.4142537
age_flame_upper = 3.180809
flags_flame = 00
evolstage_flame = 288
gravredshift_flame = 0.4493616
gravredshift_flame_lower = 0.4485487
gravredshift_flame_upper = 0.4503256
bc_flame = 0.04542332
mh_msc = -0.12909627
mh_msc_upper = -0.0010686219
mh_msc_lower = -0.23830882
azero_msc = 0.09938758
azero_msc_upper = 0.1077969
azero_msc_lower = 0.07156853
distance_msc = 189.67996
distance_msc_upper = 193.73026
distance_msc_lower = 186.24307
teff_msc1 = 6538.7773
teff_msc1_upper = 6629.3926
teff_msc1_lower = 6430.301
teff_msc2 = 5637.5254
teff_msc2_upper = 5762.9893
teff_msc2_lower = 5545.88
logg_msc1 = 4.212848
logg_msc1_upper = 4.2511716
logg_msc1_lower = 4.1775384
logg_msc2 = 4.530879
logg_msc2_upper = 4.6331034
logg_msc2_lower = 4.4754467
ag_msc = 0.08568932
ag_msc_upper = 0.0934114
ag_msc_lower = 0.061986938
logposterior_msc = 402.7367
mcmcaccept_msc = 0.29391408
mcmcdrift_msc = 0.21108809
flags_msc = 0
neuron_oa_id = 2.0210528120544035e+17
neuron_oa_dist = 7.1434956e-06
neuron_oa_dist_percentile_rank = 75
flags_oa = 0012




Observation Date:


Disclaimer
This result is provided without warranty. For all terms, see the Full Disclaimer. Copyright (C) 2025. Unless otherwise noted, all output generated by the Double Star Calculator including orbit diagrams, ephemerides, and analytical reports is licensed under CC BY 4.0.


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


Report Information
Double Star Calculator: Version 1.0 ($Rev: 2309 $)
Report created: 2026-05-10 17:42:53 +0200



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