GALEX J181044.5+232959

All names: Gaia DR2 4578337182222221440, Gaia DR3 4578337182222221440, SDSS J181044.59+232958.9, SDSSJ181044.59+232958.9, GALEX J181044.5+232959

Parameter Unit Geier 2020 Stilism Simbad
Right ascension 18 10 44.59 18 10 44.59 (0.05)
Declination 23 29 58.90 23 29 58.98 (0.07)
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] 0.37 (0.1) 0.38 (0.08)
Distance [pc] 2667.38 (733) 2655.34 (557)
Composition
Proper motion (right ascension) [mas/yr] -8.34 (0.1) -8.309 (0.06)
Proper motion (declination) [mas/yr] -3.799 (0.2) -4.142 (0.09)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.50 (0.01) 17.50 (0.01)
g magnitude 17.67 (0.005) 17.67 (0.005)
r magnitude 18.02 (0.007) 18.02 (0.007)
i magnitude 18.31 (0.009) 18.31 (0.009)
z magnitude 18.56 (0.03) 18.56 (0.03)
G magnitude 17.88 (0.001) 17.85 (0.003)
BP magnitude 17.74 (0.008)
RP magnitude 17.98 (0.01)
Pan g magnitude 17.75 (0.006)
Pan r magnitude 18.05 (0.003)
Pan i magnitude 18.34 (0.007)
Pan z magnitude 18.56 (0.01)
Pan y magnitude 18.73 (0.03)
E(B-V) 0.091

* 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.