Double Star Calculator - Results


STF 2603 - Astrometric and kinematic properties
Gaia Source ID - Star A          : 2251191616254289152     Simbad
Gaia Source ID - Star B          : 2251191611957165440     Simbad
Observation Epoch : J2016.001 / 2016-01-02 Angular Separation : 3.177 ± 0.0001 arcsec Position Angle : 20.70 ± 0.0012 degree
Star A/B Epoch : J2016.000 / J2016.000 Angular Separation : 3.177 ± 0.0001 arcsec Position Angle : 20.70 ± 0.0012 degree Projected Separation : 149 au Spatial Separation : 26635 ± 59808 au Parallax Significance : 0.45 σ 3D Space Velocity Angle : 3.57 ± 0.16 degree ΔProper Motion Angle : 3.60 ± 0.16 degree ΔTotal Proper Motion : 5.49 ± 0.22 mas/yr ΔTangential Velocity : 1.16 ± 0.13 km/s ΔRadial Velocity : 0.15 ± 0.20 km/s ΔSpeed (scalar) : 1.17 ± 0.13 km/s ΔRelative Velocity (3D) : 1.74 ± 0.12 km/s

Aladin Lite Sky Atlas



Star A - Stellar Data
Gaia Source ID                   : 2251191616254289152           VizieR
Epoch : J2016.000 Right Ascension (RA) : 19h 48m 10.60s Declination (Dec) : 70° 16' 5.19" Distance : 46.90 ± 0.28 pc Distance : 152.97 ± 0.90 ly Magnitude (G-band) : 3.64 mag Absolute Magnitude : 0.29 ± 0.01 mag Stellar Extinction : N/A Spectral Type (BP/RP) : G Bolometric correction : -0.10 mag Luminosity : 66.54 + 0.79 / − 0.78 L☉ Log(Luminosity) : 1.82311 Teff (bp_rp) : 5800.00 K Log(Teff) : 3.76343 Mass estimation : 2.15 M☉ RUWE : 2.08 Position Angle of Proper Motion : 63.26 ± 0.16 degree Total Proper Motion : 89.00 ± 0.21 mas/yr Tangential Velocity : 19.79 ± 0.13 km/s Radial Velocity (Gaia) : 2.89 ± 0.11 km/s Space Velocity : 20.00 ± 0.13 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 :    169.802 : very good
RUWE                :      2.080 : poor astrometric fit, (possible double)
Non Single Star     :            : Single Star
Duplicated source   :      false : single source
G magnitude         :      3.643 : G > 3 mag, photometry reliable
Excess noise        :      0.911 : Good fit
  Significance      :    889.716 :   Minor noise, likely negligible
BP-RP excess factor :      1.219 : photometry consistent
Visibility periods  :         13 : high, indicates well observed star
IPD multi-peak frac :         0% : single peak detected
IDP GoF harmonic amp:      0.024 : unobtrusive (single star source)


Star B - Stellar Data
Gaia Source ID                   : 2251191611957165440           VizieR
Epoch : J2016.000 Right Ascension (RA) : 19h 48m 10.82s Declination (Dec) : 70° 16' 8.16" Distance : 46.77 ± 0.09 pc Distance : 152.55 ± 0.29 ly Magnitude (G-band) : 6.93 mag Absolute Magnitude : 3.58 ± <0.01 mag Stellar Extinction : N/A Spectral Type (BP/RP) : G Bolometric correction : -0.10 mag Luminosity : 3.20 + 0.01 / − 0.01 L☉ Log(Luminosity) : 0.50566 Teff (bp_rp) : 5800.00 K Log(Teff) : 3.76343 Mass estimation : 1.25 M☉ RUWE : 1.06 Position Angle of Proper Motion : 66.87 ± 0.03 degree Total Proper Motion : 94.50 ± 0.06 mas/yr Tangential Velocity : 20.95 ± 0.04 km/s Radial Velocity (Simbad) : 3.04 ± 0.17 km/s Bibcode : 2020ApJS..248...19T Space Velocity : 21.17 ± 0.05 km/s

Star B - Selected astrophysical parameters
DSC-Combmod binary star          :       0.00
DSC-Specmod binary star          :       0.00

Star B - Double Star Quality Metrics
Parallax over error :    529.917 : very good
RUWE                :      1.060 : good astrometric fit (single star)
Non Single Star     :            : Single Star
Duplicated source   :      false : single source
G magnitude         :      6.931 : G > 3 mag, photometry reliable
Excess noise        :      0.306 : Good fit
  Significance      :     56.516 :   Minor noise, likely negligible
BP-RP excess factor :      1.503 : photometry inconsistent
Visibility periods  :         15 : high, indicates well observed star
IPD multi-peak frac :         0% : single peak detected
IDP GoF harmonic amp:      0.015 : 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)          :        0.08     (CPM)

Co-Moving

UWLE for Co-Moving Pairs (3D)      :
===================================
COMOV: Velocity Evidence Indicator :        0.89     (Strong)
COMOV: Distance Evidence Indicator :        0.95     (Strong)
Co-Moving Total Evidence Indicator :        0.92     (Strong)

rPM/COMOV Agreement                :                 (High)

Binarity

Separation, Sigma and Reliability  :
===================================
Projected Separation               :         149     au
Spatial Separation                 :       26635  ±    59808  au
  1-Sigma Range                    : [       149,      86443] au
  Significance                     :        0.45     σ
  Note: 3D distance not significantly resolved

3D spatial distance probabilities : =================================== P(D-3D <= 298 au) : 0.1 % (2.0 * D-projected) P(D-3D <= 1000 au) : 0.8 % (Intermediate) P(D-3D <= 2002 au) : 1.7 % (D-critical) P(D-3D <= 2500 au) : 2.1 % (Wide binary) P(D-3D <= 10000 au) : 9.2 % (Wide binary) P(D-3D <= 20000 au) : 18.9 % (Very wide binary) P(D-3D <= 50000 au) : 48.1 % (Extremely wide) P(D-3D <= 206265 au) : 99.8 % (Jacobi radius)

Proper Motion and Velocity         :
===================================
rPM (Proper Motion Ratio)          :        0.08     (CPM)
ΔRelative Velocity (3D)            :        1.74  ±  0.12   km/s

UWLE for Wide Binaries (3D)        :
===================================
WBS: Velocity Evidence Indicator   :        0.00     (Unlikely)
WBS: Distance Evidence Indicator   :        0.26     (Weak)
Binarity Total Evidence Indicator  :        0.00     (Unlikely)


UWLE for Wide Binaries (2D)        :
===================================
WBS: Velocity Evidence Indicator   :        0.90     (Strong)
WBS: Distance Evidence Indicator   :        0.32     (Moderate)
Binarity Total Evidence Indicator  :        0.54     (Moderate)

Orbital & Binding Dynamics         :
-----------------------------------
Est. orbital period at lower bound :      852.90            years
Escape Velocity                    :        6.37            km/s (Bound)
3D Velocity Difference             :        1.74  ±  0.12   km/s
Circular Orbital Velocity          :        4.50            km/s
Binding Indicator η                :        0.07     (Strongly Bound)
  η < 0.5 : Strongly bound / 0.5 ≤ η < 1.0: Bound / η ≥ 1.0 : Unbound

UWLE for Tight Binaries (2D) : =================================== TBS: Velocity Evidence Indicator : 0.90 (Strong) TBS: Distance Evidence Indicator : 0.98 (Strong) Binarity Total Evidence Indicator : 0.94 (Strong) Orbital & Binding Dynamics : ----------------------------------- Est. orbital period at lower bound : 852.90 years Escape Velocity : 6.37 km/s (Bound) 3D Velocity Difference : 1.74 ± 0.12 km/s Circular Orbital Velocity : 4.50 km/s Binding Indicator η : 0.07 (Strongly Bound) 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) :  2.08 : Medium
RUWE probability for a binary system (Star B) :  1.06 : 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      3.320    0.030       4.539    0.421
1901.0      3.318    0.030       4.670    0.418
1902.0      3.316    0.030       4.802    0.415
1903.0      3.314    0.029       4.934    0.411
1904.0      3.311    0.029       5.066    0.408
1905.0      3.309    0.029       5.199    0.405
1906.0      3.307    0.029       5.331    0.401
1907.0      3.305    0.028       5.464    0.398
1908.0      3.302    0.028       5.597    0.395
1909.0      3.300    0.028       5.730    0.391
1910.0      3.298    0.027       5.863    0.388
1911.0      3.296    0.027       5.996    0.385
1912.0      3.294    0.027       6.130    0.381
1913.0      3.292    0.027       6.264    0.378
1914.0      3.290    0.026       6.398    0.374
1915.0      3.288    0.026       6.532    0.371
1916.0      3.286    0.026       6.666    0.368
1917.0      3.284    0.026       6.800    0.364
1918.0      3.282    0.025       6.935    0.361
1919.0      3.280    0.025       7.070    0.357
1920.0      3.278    0.025       7.205    0.354
1921.0      3.276    0.025       7.340    0.351
1922.0      3.274    0.024       7.475    0.347
1923.0      3.272    0.024       7.610    0.344
1924.0      3.270    0.024       7.746    0.340
1925.0      3.268    0.024       7.881    0.337
1926.0      3.266    0.023       8.017    0.333
1927.0      3.264    0.023       8.153    0.330
1928.0      3.263    0.023       8.289    0.326
1929.0      3.261    0.023       8.426    0.323
1930.0      3.259    0.022       8.562    0.319
1931.0      3.257    0.022       8.699    0.316
1932.0      3.255    0.022       8.836    0.312
1933.0      3.254    0.021       8.973    0.309
1934.0      3.252    0.021       9.110    0.305
1935.0      3.250    0.021       9.247    0.302
1936.0      3.249    0.021       9.384    0.298
1937.0      3.247    0.020       9.522    0.295
1938.0      3.245    0.020       9.659    0.291
1939.0      3.244    0.020       9.797    0.288
1940.0      3.242    0.020       9.935    0.284
1941.0      3.240    0.019      10.073    0.281
1942.0      3.239    0.019      10.211    0.277
1943.0      3.237    0.019      10.349    0.274
1944.0      3.236    0.019      10.488    0.270
1945.0      3.234    0.018      10.626    0.266
1946.0      3.233    0.018      10.765    0.263
1947.0      3.231    0.018      10.904    0.259
1948.0      3.230    0.018      11.043    0.256
1949.0      3.228    0.017      11.182    0.252
1950.0      3.227    0.017      11.321    0.248
1951.0      3.226    0.017      11.460    0.245
1952.0      3.224    0.017      11.600    0.241
1953.0      3.223    0.016      11.739    0.238
1954.0      3.222    0.016      11.879    0.234
1955.0      3.220    0.016      12.019    0.230
1956.0      3.219    0.015      12.159    0.227
1957.0      3.218    0.015      12.298    0.223
1958.0      3.216    0.015      12.439    0.219
1959.0      3.215    0.015      12.579    0.216
1960.0      3.214    0.014      12.719    0.212
1961.0      3.213    0.014      12.860    0.208
1962.0      3.212    0.014      13.000    0.205
1963.0      3.210    0.014      13.141    0.201
1964.0      3.209    0.013      13.281    0.197
1965.0      3.208    0.013      13.422    0.194
1966.0      3.207    0.013      13.563    0.190
1967.0      3.206    0.013      13.704    0.186
1968.0      3.205    0.012      13.845    0.183
1969.0      3.204    0.012      13.987    0.179
1970.0      3.203    0.012      14.128    0.175
1971.0      3.202    0.012      14.269    0.172
1972.0      3.201    0.011      14.411    0.168
1973.0      3.200    0.011      14.552    0.164
1974.0      3.199    0.011      14.694    0.160
1975.0      3.198    0.011      14.836    0.157
1976.0      3.197    0.010      14.978    0.153
1977.0      3.196    0.010      15.119    0.149
1978.0      3.195    0.010      15.261    0.145
1979.0      3.194    0.009      15.403    0.142
1980.0      3.194    0.009      15.546    0.138
1981.0      3.193    0.009      15.688    0.134
1982.0      3.192    0.009      15.830    0.130
1983.0      3.191    0.008      15.972    0.127
1984.0      3.191    0.008      16.115    0.123
1985.0      3.190    0.008      16.257    0.119
1986.0      3.189    0.008      16.400    0.115
1987.0      3.188    0.007      16.542    0.112
1988.0      3.188    0.007      16.685    0.108
1989.0      3.187    0.007      16.828    0.104
1990.0      3.186    0.007      16.971    0.100
1991.0      3.186    0.006      17.113    0.096
1992.0      3.185    0.006      17.256    0.093
1993.0      3.185    0.006      17.399    0.089
1994.0      3.184    0.006      17.542    0.085
1995.0      3.184    0.005      17.685    0.081
1996.0      3.183    0.005      17.828    0.077
1997.0      3.183    0.005      17.972    0.073
1998.0      3.182    0.005      18.115    0.070
1999.0      3.182    0.004      18.258    0.066
2000.0      3.181    0.004      18.401    0.062
2001.0      3.181    0.004      18.545    0.058
2002.0      3.180    0.004      18.688    0.054
2003.0      3.180    0.003      18.831    0.050
2004.0      3.180    0.003      18.975    0.047
2005.0      3.179    0.003      19.118    0.043
2006.0      3.179    0.003      19.262    0.039
2007.0      3.179    0.002      19.405    0.035
2008.0      3.178    0.002      19.549    0.031
2009.0      3.178    0.002      19.692    0.027
2010.0      3.178    0.002      19.836    0.023
2011.0      3.178    0.001      19.979    0.019
2012.0      3.177    0.001      20.123    0.016
2013.0      3.177    0.001      20.266    0.012
2014.0      3.177    0.001      20.410    0.008
2015.0      3.177    0.000      20.554    0.004
2016.0      3.177    0.000      20.697    0.001
2017.0      3.177    0.000      20.841    0.004
2018.0      3.177    0.001      20.985    0.008
2019.0      3.177    0.001      21.128    0.012
2020.0      3.177    0.001      21.272    0.016
2021.0      3.177    0.001      21.416    0.020
2022.0      3.177    0.002      21.559    0.023
2023.0      3.177    0.002      21.703    0.027
2024.0      3.177    0.002      21.847    0.031
2025.0      3.177    0.002      21.991    0.035
2026.0      3.177    0.003      22.134    0.039
2027.0      3.177    0.003      22.278    0.043
2028.0      3.177    0.003      22.422    0.047
2029.0      3.177    0.003      22.565    0.051
2030.0      3.177    0.004      22.709    0.055
2031.0      3.178    0.004      22.852    0.059
2032.0      3.178    0.004      22.996    0.063
2033.0      3.178    0.004      23.140    0.067
2034.0      3.178    0.005      23.283    0.071
2035.0      3.178    0.005      23.427    0.075
2036.0      3.179    0.005      23.570    0.079
2037.0      3.179    0.005      23.714    0.082
2038.0      3.179    0.006      23.857    0.086
2039.0      3.180    0.006      24.000    0.090
2040.0      3.180    0.006      24.144    0.094
2041.0      3.180    0.006      24.287    0.098
2042.0      3.181    0.007      24.431    0.102
2043.0      3.181    0.007      24.574    0.106
2044.0      3.182    0.007      24.717    0.110
2045.0      3.182    0.007      24.860    0.114
2046.0      3.183    0.008      25.003    0.118
2047.0      3.183    0.008      25.147    0.122
2048.0      3.184    0.008      25.290    0.126
2049.0      3.184    0.008      25.433    0.130
2050.0      3.185    0.009      25.576    0.134
2051.0      3.185    0.009      25.719    0.138
2052.0      3.186    0.009      25.861    0.142
2053.0      3.187    0.009      26.004    0.146
2054.0      3.187    0.010      26.147    0.150
2055.0      3.188    0.010      26.290    0.154
2056.0      3.189    0.010      26.432    0.158
2057.0      3.189    0.010      26.575    0.162
2058.0      3.190    0.011      26.717    0.166
2059.0      3.191    0.011      26.860    0.170
2060.0      3.192    0.011      27.002    0.174
2061.0      3.192    0.011      27.145    0.178
2062.0      3.193    0.012      27.287    0.182
2063.0      3.194    0.012      27.429    0.186
2064.0      3.195    0.012      27.571    0.190
2065.0      3.196    0.012      27.713    0.194
2066.0      3.196    0.012      27.855    0.198
2067.0      3.197    0.013      27.997    0.202
2068.0      3.198    0.013      28.139    0.206
2069.0      3.199    0.013      28.280    0.210
2070.0      3.200    0.013      28.422    0.214
2071.0      3.201    0.014      28.563    0.217
2072.0      3.202    0.014      28.705    0.221
2073.0      3.203    0.014      28.846    0.225
2074.0      3.204    0.014      28.988    0.229
2075.0      3.205    0.015      29.129    0.233
2076.0      3.206    0.015      29.270    0.237
2077.0      3.207    0.015      29.411    0.241
2078.0      3.209    0.015      29.552    0.245
2079.0      3.210    0.016      29.692    0.249
2080.0      3.211    0.016      29.833    0.253
2081.0      3.212    0.016      29.974    0.257
2082.0      3.213    0.016      30.114    0.261
2083.0      3.214    0.017      30.255    0.265
2084.0      3.216    0.017      30.395    0.269
2085.0      3.217    0.017      30.535    0.273
2086.0      3.218    0.017      30.675    0.277
2087.0      3.219    0.018      30.815    0.281
2088.0      3.221    0.018      30.955    0.285
2089.0      3.222    0.018      31.095    0.289
2090.0      3.223    0.018      31.234    0.293
2091.0      3.225    0.019      31.374    0.297
2092.0      3.226    0.019      31.513    0.301
2093.0      3.227    0.019      31.652    0.305
2094.0      3.229    0.019      31.791    0.309
2095.0      3.230    0.019      31.930    0.313
2096.0      3.232    0.020      32.069    0.317
2097.0      3.233    0.020      32.208    0.321
2098.0      3.235    0.020      32.347    0.325
2099.0      3.236    0.020      32.485    0.329
2100.0      3.238    0.021      32.624    0.333




WDS record for STF 2603
wds_id                       : 19482+7016
discoverer_code              : STF
discoverer_number            : 2603
discoverer_components        : 
date_first                   : 1823
date_last                    : 2023
num_of_obs                   : 161
pa_first                     : 355
pa_last                      : 21
sep_first                    : 2.6
sep_last                     : 3.1
mag_primary                  : 4.01
mag_secondary                : 6.87
spectral_type                : G7IIIb
primary_proper_motion_RA     : 79
primary_proper_motion_DEC    : 39
secondary_proper_motion_RA   : 
secondary_proper_motion_DEC  : 
dm_number                    : +69 1070
notes                        : NO
precise_coordinate           : 194810.35+701604.5
                             : 19:48:10.35 +70:16:04.5

WDS Notes:
----------
N: Notes found in WDSNOT MEMO of WDS
O: Orbit described in WDSNOT MEMO and has entry in Orbit Catalog


Orbital Elements for STF 2603
WDS: STF 2603 WDS ID/Discoverer
P: 2753.326 Orbital period (years)
a: 8.01058 Semi-major axis (arcseconds)
i: 70.932 Inclination (degrees)
Ω: 128.309 Longitude of ascending node (degrees)
T: 1598.565 Epoch of periastron passage (year)
e: 0.83937 Eccentricity
ω: 111.258 Argument of periastron (degrees)
Start-Year: 648.337 Year
End-Year: 3401.663 Year
Epoch: 2016.0 Besselian Epoch
Further data from the WDS Sixth Catalog of Orbits for STF 2603
Position: 194810.35+701604.5 Epoch-2000 right ascension and declination
WDS-ID: 19482+7016 WDS designation
Discoverer Code: STF 2603 Discover designation and components
ADS number: 13007 Aitken Double Star catalog
HD number: 188119 HD catalog number
Hipparcos number: 97433 Hipparcos catalog number
V1: 4.01 Magnitude of the primary
V2: 6.87 Magnitude of the secondary
Equinox: Equinox
Date: 2012 Date of last observation
Orbit grade: 5 Orbit grade, ranging from :
1 = Definitive
2 = Good
3 = Reliable
4 = Preliminary
5 = Indeterminate
8 = Interferometric
9 = Astrometric
Flags: n Flags
Ephemerides: Ephemerides
Code: Izm2019 Reference

Double Star Orbit for STF 2603



WDS 6th Orbit including measures of STF 2603

-- Image from the USNO WDS 6th Orbit Catalog (see Acknowledgements) --


Legend:
Green plus signs:Visual (micrometric) measures
Violet asterisks:Photographic measures
Blue symbols:Various interferometric techniques
Dot-dash line:Indicates the line of nodes

Ephemeris of STF 2603
Click to expand/collapse ephemeris:
Year       Sep[“]   PA[°]
---------------------------------------------
2016.00    3.190    21.02
--------------------------
640.00    8.004    99.22
650.00    8.017    99.46
660.00    8.028    99.69
670.00    8.039    99.92
680.00    8.050   100.15
690.00    8.059   100.38
700.00    8.068   100.61
710.00    8.076   100.84
720.00    8.083   101.06
730.00    8.090   101.29
740.00    8.096   101.52
750.00    8.101   101.75
760.00    8.105   101.97
770.00    8.108   102.20
780.00    8.111   102.43
790.00    8.112   102.65
800.00    8.113   102.88
810.00    8.113   103.11
820.00    8.112   103.33
830.00    8.110   103.56
840.00    8.108   103.79
850.00    8.104   104.01
860.00    8.099   104.24
870.00    8.094   104.47
880.00    8.087   104.69
890.00    8.079   104.92
900.00    8.071   105.15
910.00    8.061   105.38
920.00    8.050   105.61
930.00    8.038   105.84
940.00    8.025   106.07
950.00    8.011   106.30
960.00    7.995   106.53
970.00    7.979   106.77
980.00    7.961   107.00
990.00    7.942   107.24
1000.00    7.922   107.48
1010.00    7.900   107.71
1020.00    7.877   107.95
1030.00    7.853   108.19
1040.00    7.827   108.44
1050.00    7.800   108.68
1060.00    7.771   108.93
1070.00    7.741   109.17
1080.00    7.709   109.42
1090.00    7.676   109.68
1100.00    7.641   109.93
1110.00    7.604   110.19
1120.00    7.566   110.44
1130.00    7.526   110.71
1140.00    7.484   110.97
1150.00    7.440   111.24
1160.00    7.394   111.51
1170.00    7.346   111.78
1180.00    7.295   112.06
1190.00    7.243   112.34
1200.00    7.189   112.63
1210.00    7.132   112.92
1220.00    7.072   113.22
1230.00    7.010   113.52
1240.00    6.946   113.82
1250.00    6.878   114.13
1260.00    6.808   114.45
1270.00    6.735   114.78
1280.00    6.659   115.11
1290.00    6.579   115.45
1300.00    6.496   115.80
1310.00    6.410   116.16
1320.00    6.319   116.52
1330.00    6.225   116.90
1340.00    6.126   117.29
1350.00    6.023   117.70
1360.00    5.915   118.11
1370.00    5.802   118.55
1380.00    5.683   119.00
1390.00    5.559   119.47
1400.00    5.429   119.97
1410.00    5.292   120.48
1420.00    5.147   121.03
1430.00    4.995   121.61
1440.00    4.834   122.23
1450.00    4.664   122.89
1460.00    4.483   123.60
1470.00    4.291   124.37
1480.00    4.086   125.22
1490.00    3.866   126.17
1500.00    3.630   127.23
1510.00    3.375   128.44
1520.00    3.098   129.87
1530.00    2.796   131.58
1540.00    2.464   133.74
1550.00    2.097   136.62
1560.00    1.690   140.80
1570.00    1.240   147.88
1580.00    0.769   163.52
1590.00    0.438   212.95
1600.00    0.668   273.55
1610.00    1.108   293.70
1620.00    1.496   302.60
1630.00    1.801   308.08
1640.00    2.036   312.12
1650.00    2.216   315.41
1660.00    2.357   318.26
1670.00    2.469   320.81
1680.00    2.558   323.17
1690.00    2.630   325.38
1700.00    2.688   327.49
1710.00    2.736   329.51
1720.00    2.775   331.47
1730.00    2.807   333.39
1740.00    2.834   335.26
1750.00    2.857   337.10
1760.00    2.875   338.91
1770.00    2.891   340.70
1780.00    2.904   342.48
1790.00    2.916   344.24
1800.00    2.926   345.98
1810.00    2.936   347.72
1820.00    2.944   349.44
1830.00    2.952   351.15
1840.00    2.960   352.86
1850.00    2.968   354.55
1860.00    2.976   356.24
1870.00    2.984   357.92
1880.00    2.992   359.59
1890.00    3.002     1.25
1900.00    3.011     2.90
1910.00    3.022     4.53
1920.00    3.033     6.16
1930.00    3.045     7.77
1940.00    3.058     9.37
1950.00    3.072    10.96
1960.00    3.087    12.53
1970.00    3.103    14.08
1980.00    3.120    15.62
1990.00    3.138    17.14
2000.00    3.157    18.65
2010.00    3.177    20.13
2020.00    3.199    21.60
2030.00    3.221    23.05
2040.00    3.244    24.47
2050.00    3.268    25.88
2060.00    3.294    27.26
2070.00    3.320    28.62
2080.00    3.347    29.96
2090.00    3.375    31.28
2100.00    3.404    32.58
2110.00    3.434    33.85
2120.00    3.465    35.11
2130.00    3.497    36.34
2140.00    3.530    37.54
2150.00    3.563    38.73
2160.00    3.597    39.89
2170.00    3.632    41.03
2180.00    3.667    42.15
2190.00    3.704    43.25
2200.00    3.740    44.32
2210.00    3.778    45.38
2220.00    3.816    46.41
2230.00    3.854    47.42
2240.00    3.894    48.42
2250.00    3.933    49.39
2260.00    3.973    50.34
2270.00    4.014    51.28
2280.00    4.055    52.19
2290.00    4.096    53.09
2300.00    4.138    53.97
2310.00    4.180    54.83
2320.00    4.223    55.67
2330.00    4.265    56.50
2340.00    4.308    57.31
2350.00    4.352    58.11
2360.00    4.395    58.88
2370.00    4.439    59.65
2380.00    4.483    60.40
2390.00    4.527    61.13
2400.00    4.571    61.85
2410.00    4.616    62.56
2420.00    4.660    63.25
2430.00    4.705    63.93
2440.00    4.750    64.60
2450.00    4.795    65.25
2460.00    4.839    65.89
2470.00    4.884    66.52
2480.00    4.929    67.14
2490.00    4.974    67.75
2500.00    5.019    68.35
2510.00    5.064    68.93
2520.00    5.109    69.51
2530.00    5.154    70.07
2540.00    5.199    70.63
2550.00    5.244    71.18
2560.00    5.289    71.71
2570.00    5.334    72.24
2580.00    5.378    72.76
2590.00    5.423    73.27
2600.00    5.467    73.77
2610.00    5.512    74.27
2620.00    5.556    74.76
2630.00    5.600    75.23
2640.00    5.644    75.71
2650.00    5.687    76.17
2660.00    5.731    76.63
2670.00    5.774    77.08
2680.00    5.817    77.52
2690.00    5.860    77.96
2700.00    5.903    78.39
2710.00    5.946    78.81
2720.00    5.988    79.23
2730.00    6.030    79.64
2740.00    6.072    80.05
2750.00    6.114    80.45
2760.00    6.156    80.85
2770.00    6.197    81.24
2780.00    6.238    81.62
2790.00    6.278    82.00
2800.00    6.319    82.38
2810.00    6.359    82.75
2820.00    6.399    83.12
2830.00    6.438    83.48
2840.00    6.478    83.84
2850.00    6.516    84.19
2860.00    6.555    84.54
2870.00    6.593    84.88
2880.00    6.631    85.22
2890.00    6.669    85.56
2900.00    6.706    85.89
2910.00    6.743    86.22
2920.00    6.780    86.55
2930.00    6.816    86.87
2940.00    6.852    87.19
2950.00    6.888    87.51
2960.00    6.923    87.82
2970.00    6.958    88.13
2980.00    6.992    88.43
2990.00    7.026    88.74
3000.00    7.060    89.04
3010.00    7.093    89.33
3020.00    7.126    89.63
3030.00    7.159    89.92
3040.00    7.191    90.21
3050.00    7.222    90.50
3060.00    7.254    90.78
3070.00    7.284    91.06
3080.00    7.315    91.34
3090.00    7.344    91.62
3100.00    7.374    91.90
3110.00    7.403    92.17
3120.00    7.431    92.44
3130.00    7.459    92.71
3140.00    7.487    92.98
3150.00    7.514    93.24
3160.00    7.540    93.50
3170.00    7.567    93.76
3180.00    7.592    94.02
3190.00    7.617    94.28
3200.00    7.642    94.54
3210.00    7.666    94.79
3220.00    7.689    95.04
3230.00    7.712    95.30
3240.00    7.735    95.55
3250.00    7.756    95.79
3260.00    7.778    96.04
3270.00    7.798    96.29
3280.00    7.819    96.53
3290.00    7.838    96.77
3300.00    7.857    97.02
3310.00    7.876    97.26
3320.00    7.893    97.50
3330.00    7.910    97.73
3340.00    7.927    97.97
3350.00    7.943    98.21
3360.00    7.958    98.44
3370.00    7.973    98.68
3380.00    7.987    98.91
3390.00    8.000    99.15
3400.00    8.013    99.38
3410.00    8.025    99.61


Parsed GAIA Input Data
Click to expand/collapse the Gaia Input Data:
Star A - gaiadr3.gaia_source
solution_id = 1636148068921376768
designation = Gaia DR3 2251191616254289152
source_id = 2251191616254289152
random_index = 130447693
ref_epoch = 2016.0
ra = 297.04417326624304
ra_error = 0.14690895
dec = 70.26810826288803
dec_error = 0.13357405
parallax = 21.32193454044623
parallax_error = 0.12556976
parallax_over_error = 169.8015
pm = 89.002106
pmra = 79.48624999798157
pmra_error = 0.2016175
pmdec = 40.04136288994442
pmdec_error = 0.2539203
ra_dec_corr = -0.22602773
ra_parallax_corr = 0.03660555
ra_pmra_corr = -0.3766121
ra_pmdec_corr = 0.45393744
dec_parallax_corr = 0.005288513
dec_pmra_corr = 0.378071
dec_pmdec_corr = 0.0473112
parallax_pmra_corr = -0.0037526444
parallax_pmdec_corr = -0.18347384
pmra_pmdec_corr = -0.24714464
astrometric_n_obs_al = 121
astrometric_n_obs_ac = 121
astrometric_n_good_obs_al = 116
astrometric_n_bad_obs_al = 5
astrometric_gof_al = 13.999302
astrometric_chi2_al = 12854.01
astrometric_excess_noise = 0.91135836
astrometric_excess_noise_sig = 889.71564
astrometric_params_solved = 95
astrometric_primary_flag = false
pseudocolour = 1.535217
pseudocolour_error = 0.036112223
ra_pseudocolour_corr = -0.19555172
dec_pseudocolour_corr = 0.07492275
parallax_pseudocolour_corr = -0.037707992
pmra_pseudocolour_corr = 0.23561151
pmdec_pseudocolour_corr = -0.15546864
astrometric_matched_transits = 14
visibility_periods_used = 13
astrometric_sigma5d_max = 0.37448475
matched_transits = 15
new_matched_transits = 15
matched_transits_removed = 0
ipd_gof_harmonic_amplitude = 0.024139099
ipd_gof_harmonic_phase = 122.56336
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 2.075688
duplicated_source = false
phot_g_n_obs = 108
phot_g_mean_flux = 657220023.6719723
phot_g_mean_flux_error = 990674.4
phot_g_mean_flux_over_error = 663.4067
phot_g_mean_mag = 3.64309
phot_bp_n_obs = 13
phot_bp_mean_flux = 303574308.83022827
phot_bp_mean_flux_error = 1227785.4
phot_bp_mean_flux_over_error = 247.25357
phot_bp_mean_mag = 4.1328797
phot_rp_n_obs = 14
phot_rp_mean_flux = 497627300.92785114
phot_rp_mean_flux_error = 2080613.8
phot_rp_mean_flux_over_error = 239.17332
phot_rp_mean_mag = 3.005635
phot_bp_rp_excess_factor = 1.2190766
phot_bp_n_contaminated_transits = 3
phot_bp_n_blended_transits = 0
phot_rp_n_contaminated_transits = 4
phot_rp_n_blended_transits = 0
phot_proc_mode = 0
bp_rp = 1.1272447
bp_g = 0.48978972
g_rp = 0.637455
radial_velocity = 2.8889294
radial_velocity_error = 0.11355256
rv_method_used = 1
rv_nb_transits = 2
rv_nb_deblended_transits = 0
rv_visibility_periods_used = 2
rv_expected_sig_to_noise = 582.35077
rv_time_duration = 378.101
rv_template_teff = 5000.0
rv_template_logg = 2.5
rv_template_fe_h = -0.25
rv_atm_param_origin = 222
grvs_mag = 2.7870762
grvs_mag_error = 0.010594538
grvs_mag_nb_transits = 2
phot_variable_flag = NOT_AVAILABLE
l = 102.43156592989587
b = 20.828887554059715
ecl_lon = 32.69497999658892
ecl_lat = 79.48988329641163
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 = 1.03527416e-13
classprob_dsc_combmod_galaxy = 5.1711424e-13
classprob_dsc_combmod_star = 0.99985105
    Star B - gaiadr3.gaia_source
solution_id = 1636148068921376768
designation = Gaia DR3 2251191611957165440
source_id = 2251191611957165440
random_index = 1745419775
ref_epoch = 2016.0
ra = 297.0450971101002
ra_error = 0.049787145
dec = 70.26893378053556
dec_error = 0.039972946
parallax = 21.380800825355486
parallax_error = 0.040347435
parallax_over_error = 529.91724
pm = 94.49613
pmra = 86.89751762200595
pmra_error = 0.059283294
pmdec = 37.126000674825775
pmdec_error = 0.05428288
ra_dec_corr = -0.27459323
ra_parallax_corr = 0.07659311
ra_pmra_corr = -0.42204174
ra_pmdec_corr = 0.28612867
dec_parallax_corr = -0.08727382
dec_pmra_corr = 0.2797748
dec_pmdec_corr = -0.3853653
parallax_pmra_corr = -0.1810088
parallax_pmdec_corr = 0.098138645
pmra_pmdec_corr = -0.32109287
astrometric_n_obs_al = 148
astrometric_n_obs_ac = 148
astrometric_n_good_obs_al = 143
astrometric_n_bad_obs_al = 5
astrometric_gof_al = 1.10442
astrometric_chi2_al = 1162.256
astrometric_excess_noise = 0.30573398
astrometric_excess_noise_sig = 56.516285
astrometric_params_solved = 95
astrometric_primary_flag = false
pseudocolour = 1.6144036
pseudocolour_error = 0.01274753
ra_pseudocolour_corr = 0.11444611
dec_pseudocolour_corr = 0.17160505
parallax_pseudocolour_corr = 0.10065564
pmra_pseudocolour_corr = -0.11485082
pmdec_pseudocolour_corr = -0.20737387
astrometric_matched_transits = 17
visibility_periods_used = 15
astrometric_sigma5d_max = 0.09587992
matched_transits = 20
new_matched_transits = 8
matched_transits_removed = 11
ipd_gof_harmonic_amplitude = 0.015112347
ipd_gof_harmonic_phase = 128.33138
ipd_frac_multi_peak = 0
ipd_frac_odd_win = 0
ruwe = 1.0649713
duplicated_source = false
phot_g_n_obs = 159
phot_g_mean_flux = 31816861.198297534
phot_g_mean_flux_error = 37163.363
phot_g_mean_flux_over_error = 856.13513
phot_g_mean_mag = 6.9307237
phot_bp_n_obs = 3
phot_bp_mean_flux = 22118059.625976764
phot_bp_mean_flux_error = 1660911.6
phot_bp_mean_flux_over_error = 13.316819
phot_bp_mean_mag = 6.9766746
phot_rp_n_obs = 2
phot_rp_mean_flux = 25706952.00033786
phot_rp_mean_flux_error = 31480.059
phot_rp_mean_flux_over_error = 816.61066
phot_rp_mean_mag = 6.2227693
phot_bp_rp_excess_factor = 1.5031341
phot_bp_n_contaminated_transits = 0
phot_bp_n_blended_transits = 3
phot_rp_n_contaminated_transits = 0
phot_rp_n_blended_transits = 2
phot_proc_mode = 0
bp_rp = 0.7539053
bp_g = 0.04595089
g_rp = 0.7079544
phot_variable_flag = NOT_AVAILABLE
l = 102.43250958787318
b = 20.828916904651084
ecl_lon = 32.699244701852116
ecl_lat = 79.489466671124
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 = 7.476747e-08
classprob_dsc_combmod_galaxy = 5.286083e-09
classprob_dsc_combmod_star = 0.9999818
radial_velocity = 3.04
radial_velocity_error = 0.17
- gaiadr3.astrophysical_parameters
solution_id = 1636148068921376768
source_id = 2251191616254289152
classprob_dsc_combmod_quasar = 1.03527416e-13
classprob_dsc_combmod_galaxy = 5.1711424e-13
classprob_dsc_combmod_star = 0.99985105
classprob_dsc_combmod_whitedwarf = 8.492531e-10
classprob_dsc_combmod_binarystar = 0.00014896748
classprob_dsc_specmod_quasar = 0.0
classprob_dsc_specmod_galaxy = 0.0
classprob_dsc_specmod_star = 0.9853152
classprob_dsc_specmod_whitedwarf = 4.169157e-06
classprob_dsc_specmod_binarystar = 0.014680585
classprob_dsc_allosmod_quasar = 0.0
classprob_dsc_allosmod_galaxy = 0.0
classprob_dsc_allosmod_star = 1.0
teff_gspspec = 4874.0
teff_gspspec_lower = 4869.0
teff_gspspec_upper = 4881.0
logg_gspspec = 2.22
logg_gspspec_lower = 2.21
logg_gspspec_upper = 2.24
mh_gspspec = -0.46
mh_gspspec_lower = -0.46
mh_gspspec_upper = -0.45
alphafe_gspspec = 0.06
alphafe_gspspec_lower = 0.05
alphafe_gspspec_upper = 0.06
fem_gspspec = -0.11
fem_gspspec_lower = -0.15
fem_gspspec_upper = -0.07
fem_gspspec_nlines = 8
fem_gspspec_linescatter = 0.11
sife_gspspec = 0.14
sife_gspspec_lower = 0.1
sife_gspspec_upper = 0.17
sife_gspspec_nlines = 3
sife_gspspec_linescatter = 0.07
cafe_gspspec = 0.05
cafe_gspspec_lower = 0.04
cafe_gspspec_upper = 0.05
cafe_gspspec_nlines = 7
cafe_gspspec_linescatter = 0.02
tife_gspspec = -0.01
tife_gspspec_lower = -0.06
tife_gspspec_upper = 0.04
tife_gspspec_nlines = 2
tife_gspspec_linescatter = 0.03
mgfe_gspspec = 0.19
mgfe_gspspec_lower = 0.06
mgfe_gspspec_upper = 0.29
mgfe_gspspec_nlines = 1
mgfe_gspspec_linescatter = 0.0
nfe_gspspec = -0.01
nfe_gspspec_lower = -0.06
nfe_gspspec_upper = 0.04
nfe_gspspec_nlines = 1
nfe_gspspec_linescatter = 0.0
nife_gspspec = -0.01
nife_gspspec_lower = -0.06
nife_gspspec_upper = 0.03
nife_gspspec_nlines = 1
nife_gspspec_linescatter = 0.0
dib_gspspec_lambda = 862.5192
dib_gspspec_lambda_uncertainty = 0.003983432
dibew_gspspec = 0.007
dibew_gspspec_uncertainty = 0.0
dibewnoise_gspspec_uncertainty = 0.0001
dibp0_gspspec = -0.012
dibp2_gspspec = 0.2426
dibp2_gspspec_uncertainty = 0.0356
dibqf_gspspec = 5
flags_gspspec = 00000000000000010009900009900990099999995
logchisq_gspspec = -4.38044
ew_espels_halpha = -0.026302204
ew_espels_halpha_uncertainty = 0.042432036
ew_espels_halpha_flag = 0
ew_espels_halpha_model = 0.150443
flags_esphs = 94
spectraltype_esphs = K
mh_msc = 0.23327029
mh_msc_upper = 0.5
mh_msc_lower = -1.0
azero_msc = 0.48926365
azero_msc_upper = 2.5668015
azero_msc_lower = 0.0
distance_msc = 22.226091
distance_msc_upper = 37.668083
distance_msc_lower = 16.730505
teff_msc1 = 5103.462
teff_msc1_upper = 5631.1084
teff_msc1_lower = 4145.0
teff_msc2 = 5817.8135
teff_msc2_upper = 8000.0
teff_msc2_lower = 3000.0
logg_msc1 = 3.2553015
logg_msc1_upper = 3.7904773
logg_msc1_lower = 2.5914035
logg_msc2 = 3.9638748
logg_msc2_upper = 5.2
logg_msc2_lower = 2.0
ag_msc = 0.38731635
ag_msc_upper = 1.9917226
ag_msc_lower = 0.0
logposterior_msc = -17701.238
mcmcaccept_msc = 0.21047732
mcmcdrift_msc = 0.15881555
flags_msc = 1
    - gaiadr3.astrophysical_parameters
solution_id = 1636148068921376768
source_id = 2251191611957165440
classprob_dsc_combmod_quasar = 7.476747e-08
classprob_dsc_combmod_galaxy = 5.286083e-09
classprob_dsc_combmod_star = 0.9999818
classprob_dsc_combmod_whitedwarf = 2.8442307e-07
classprob_dsc_combmod_binarystar = 1.7803563e-05
classprob_dsc_specmod_quasar = 0.0072515565
classprob_dsc_specmod_galaxy = 0.000102631275
classprob_dsc_specmod_star = 0.98947877
classprob_dsc_specmod_whitedwarf = 0.0014053604
classprob_dsc_specmod_binarystar = 0.0017616965
classprob_dsc_allosmod_quasar = 0.0
classprob_dsc_allosmod_galaxy = 0.0
classprob_dsc_allosmod_star = 1.0
mh_msc = -0.33480513
mh_msc_upper = 0.5
mh_msc_lower = -1.0
azero_msc = 0.06344679
azero_msc_upper = 0.5360808
azero_msc_lower = 0.0
distance_msc = 46.8387
distance_msc_upper = 47.7667
distance_msc_lower = 45.120598
teff_msc1 = 6418.659
teff_msc1_upper = 8000.0
teff_msc1_lower = 5201.218
teff_msc2 = 5472.3184
teff_msc2_upper = 6397.9873
teff_msc2_lower = 4941.454
logg_msc1 = 4.5366383
logg_msc1_upper = 5.2
logg_msc1_lower = 3.1543112
logg_msc2 = 4.624733
logg_msc2_upper = 5.2
logg_msc2_lower = 3.9854183
ag_msc = 0.054515064
ag_msc_upper = 0.4540519
ag_msc_lower = 0.0
logposterior_msc = -253.76138
mcmcaccept_msc = 0.22391409
mcmcdrift_msc = 0.025830468
flags_msc = 0




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 08:40:17 +0200



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