GALEX J054434.8+821413

All names: GALEX J054434.8+821413, Gaia DR2 557304167371416960, SDSS J054434.69+821413.5, SDSS J054434.76+821413.3, SDSSJ054434.76+821413.3, Gaia DR3 557304167371416960

Parameter Unit Geier 2020 Stilism Simbad
Right ascension 05 44 34.76 05 44 34.78 (0.1)
Declination 82 14 13.34 82 14 13.29 (0.1)
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] 0.30 (0.2) 0.21 (0.1)
Distance [pc] 3303.60 (1817) 4670.71 (2952)
Composition
Proper motion (right ascension) [mas/yr] -0.775 (0.3) -0.704 (0.2)
Proper motion (declination) [mas/yr] -0.989 (0.3) -1.113 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.95 (0.02) 18.95 (0.02)
g magnitude 18.45 (0.007) 18.45 (0.007)
r magnitude 18.73 (0.01) 18.73 (0.01)
i magnitude 18.94 (0.02) 18.94 (0.02)
z magnitude 19.24 (0.07) 19.25 (0.07)
G magnitude 18.63 (0.002) 18.59 (0.003)
BP magnitude 18.60 (0.02)
RP magnitude 18.67 (0.04)
Pan g magnitude 18.51 (0.01)
Pan r magnitude 18.74 (0.008)
Pan i magnitude 18.98 (0.02)
Pan z magnitude 19.17 (0.01)
Pan y magnitude 19.02 (0.06)
E(B-V) 0.057

* 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.