HE 0247-0418

All names: Gaia EDR3 5185394353824729856, GALEX J025023.8-040611, PB9286, 2MASS J02502394-0406139, Gaia DR3 5185394353824729856, TYC 4703-810-1, HE 0247-0418, GALEX J025023.7-040611, GALEX J025023.8-040610, PB 9286, Gaia DR2 5185394353824729856, TIC 10932480

Parameter Unit Gaia EDR3 Geier 2020 Stilism Simbad
Right ascension 02 50 23.93 (0.04) 02 50 23.92 02 50 23.93 (0.04)
Declination -04 06 14.48 (0.03) -04 06 12.13 -04 06 13.94 (0.03)
Spectral type sdB sdB
Effective temperature [K] 28560.0 (930)
log(g) [cgs] 5.67 (0.1)
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 2.02 (0.05) 2.38 (0.1) 2.02 (0.05)
Distance [pc] 493.85 (12) 420.86 (19) 493.85 (12)
Composition
Proper motion (right ascension) [mas/yr] 1.223 (0.05) 1.309 (0.1) 1.223 (0.05)
Proper motion (declination) [mas/yr] -33.544 (0.04) -33.588 (0.1) -33.544 (0.04)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 12.45 (0.2)
V magnitude 13.11 (0.3)
R magnitude
I magnitude
J magnitude 13.60 (0.03) 13.60 (0.03)
H magnitude 13.72 (0.03) 13.72 (0.03)
K magnitude 13.82 (0.06) 13.82 (0.06)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 13.00 (0.003) 13.02 (0.001) 13.00 (0.003)
BP magnitude 12.87 (0.003) 12.81 (0.01)
RP magnitude 13.26 (0.004) 13.26 (0.002)
Pan g magnitude 12.74
Pan r magnitude 13.22
Pan i magnitude 13.60 (0.003)
Pan z magnitude 13.89 (0.008)
Pan y magnitude 14.03 (0.005)
E(B-V) 0.026

* 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.