GALEX J103810.9+253204

All names: Gaia DR2 724806143863825664, SDSSJ103810.94+253204.8, GALEX J103810.9+253204, SDSS J103810.94+253204.7, SDSS J103810.94+253204.8, Gaia DR3 724806143863825664

Parameter Unit Geier 2020 Stilism Simbad
Right ascension 10 38 10.94 10 38 10.94 (0.06)
Declination 25 32 04.80 25 32 04.92 (0.05)
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] 0.15 (0.09) 0.11 (0.07)
Distance [pc] 6557.38 (3784) 8833.92 (5291)
Composition
Proper motion (right ascension) [mas/yr] -10.638 (0.2) -10.883 (0.07)
Proper motion (declination) [mas/yr] -12.659 (0.1) -12.708 (0.06)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 16.84 (0.008) 16.84 (0.008)
g magnitude 16.77 (0.005) 16.77 (0.005)
r magnitude 17.19 (0.005) 17.19 (0.005)
i magnitude 17.50 (0.007) 17.50 (0.007)
z magnitude 17.77 (0.02) 17.77 (0.02)
G magnitude 17.02 (0.002) 16.99 (0.003)
BP magnitude 16.85 (0.01)
RP magnitude 17.17 (0.01)
Pan g magnitude 16.84 (0.003)
Pan r magnitude 17.20 (0.004)
Pan i magnitude 17.50 (0.006)
Pan z magnitude 17.76 (0.004)
Pan y magnitude 17.89 (0.01)
E(B-V) 0.019

* 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.