GALEX J212938.2+252806

All names: SDSS J212938.44+252803.6, 2MASS J21293843+2528035, Gaia DR2 1798549715915714176, TIC 15295189, GALEXJ21296+2528, WISEA J212938.44+252803.5, WISE J212938.43+252803.6, GALEX J212938.2+252806, Gaia DR3 1798549715915714176, UCAC4 578-125435, UCAC2 40778261

Parameter Unit Geier 2020 Stilism Simbad
Right ascension 21 29 38.28 21 29 38.44 (0.05)
Declination 25 28 06.32 25 28 03.66 (0.04)
Spectral type sdB sdB
Effective temperature [K]
log(g) [cgs]
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 1.58 (0.06) 1.59 (0.06)
Distance [pc] 633.63 (25) 627.79 (23)
Composition
Proper motion (right ascension) [mas/yr] 0.987 (0.1) 0.327 (0.06)
Proper motion (declination) [mas/yr] -1.281 (0.1) -1.015 (0.04)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude 13.86 (0.1)
I magnitude
J magnitude 13.04 (0.02) 13.04 (0.02)
H magnitude 12.60 (0.03) 12.60 (0.03)
K magnitude 12.52 (0.02) 12.52 (0.02)
u magnitude 13.50 (0.003)
g magnitude 13.57 (0.002)
r magnitude 13.72 (0.003)
i magnitude 13.79 (0.003)
z magnitude 13.84 (0.003)
G magnitude 13.62 (0.0004) 13.60 (0.003)
BP magnitude 13.59 (0.005)
RP magnitude 13.48 (0.001)
Pan g magnitude 13.65 (0.002)
Pan r magnitude 13.78 (0.002)
Pan i magnitude 13.84 (0.005)
Pan z magnitude 13.88 (0.002)
Pan y magnitude 13.87 (0.004)
E(B-V) 0.065

* 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.