GALEX J202059.8-225001

All names: GALEXJ20209-2250, TYC 6906-318-1, Gaia EDR3 6852819233589003136, Gaia DR3 6852819267951426560, 2MASS J20205977-2250026, Gaia DR1 6852819263654251520, Gaia DR2 6852819267951426560, GALEX J202059.8-225001, TIC 71880903

Parameter Unit Gaia EDR3 Geier 2020 Stilism Simbad
Right ascension 20 21 05.50 (0.6) 20 20 59.85 20 20 59.76 (0.06)
Declination -22 49 49.79 (0.5) -22 50 01.33 -22 50 02.64 (0.05)
Spectral type sdB+G0V sdB+G0V
Effective temperature [K] 34350.0 (330)
log(g) [cgs] 5.44 (0.2)
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 1.22 (0.7) 2.72 (0.09) 2.65 (0.07)
Distance [pc] 820.34 (453) 367.67 (12) 377.74 (10)
Composition
Proper motion (right ascension) [mas/yr] -6.179 (0.6) -8.917 (0.1) -9.201 (0.08)
Proper motion (declination) [mas/yr] -8.693 (0.6) -6.648 (0.1) -6.867 (0.06)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 11.78 (0.08)
V magnitude 11.83 (0.2)
R magnitude
I magnitude
J magnitude 11.12 (0.02) 11.12 (0.02)
H magnitude 10.85 (0.02) 10.85 (0.02)
K magnitude 10.83 (0.03) 10.83 (0.03)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 20.31 (0.007) 11.69 (0.0009) 11.68 (0.003)
BP magnitude 20.45 (0.08) 11.72 (0.004)
RP magnitude 19.57 (0.06) 11.50 (0.001)
Pan g magnitude 11.71
Pan r magnitude 11.63
Pan i magnitude 11.68
Pan z magnitude 11.76
Pan y magnitude 11.80
E(B-V) 0.087

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.