GALEX 2682889761461371913

All names: GALEX 2682889761461371913, USNO-A2.0 1500-05199599, Gaia DR2 1067957087168418432, Gaia DR3 1067957087168418432, SDSS J093356.78+653025.9, Gaia EDR3 1067957087168418432, SDSS J093356.79+653026.0

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 33 56.82 (0.09) 09 33 56.78 09 33 56.82 (0.1) 09 33 56.82 09 33 56.78 (0.1) 09 33 56.79
Declination 65 30 26.05 (0.1) 65 30 25.93 65 30 26.05 (0.2) 65 30 26.05 65 30 25.92 (0.2) 65 30 25.97
Spectral type DB DB DBAH DBAH:M: DB+MS
Effective temperature [K] 13514.0 15320.0 (83) 16803.0 (1389) 15451.0 (152)
log(g) [cgs] 7.93 8.00 (0) 8.30 (0.1) 8.33 (0.1)
Mass [M] 0.548 0.781 (0.09)
log(Luminosity) [L]
Cooling age [Gyr] 0.2467
log(H/He) <-5.26
log(C/He)
log(Ca/He) <-7.22
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 3.70 (0.1) 3.58 (0.2) 3.70 3.58 (0.2)
Distance [pc] 270.17 (11) 279.39 (17) 278.00 270.17 279.39 (17)
Composition He
Proper motion (right ascension) [mas/yr] 17.15455612 (0.1) 17.17664655 (0.2) 17.177 (0.2)
Proper motion (declination) [mas/yr] 9.010660492 (0.2) 8.489017697 (0.4) 8.489 (0.4)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude 18.10 (0.3)
V magnitude
R magnitude 18.70 (0.3)
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.43 (0.02) 18.43 (0.02) 18.46 (0.03)
g magnitude 18.50 (0.008) 18.50 (0.008) 18.53 (0.02)
r magnitude 18.81 (0.01) 18.81 (0.01) 18.84 (0.02)
i magnitude 19.00 (0.02) 19.00 (0.02) 19.04 (0.03)
z magnitude 19.19 (0.07) 19.19 (0.07) 19.22 (0.07)
G magnitude 18.63 (0.02) 18.68 18.63 18.68 (0.002)
BP magnitude 18.62 (0.02) 18.60
RP magnitude 18.80 (0.03) 18.71
Pan g magnitude 18.56 (0.003)
Pan r magnitude 18.78 (0.007)
Pan i magnitude 19.07 (0.009)
Pan z magnitude 19.21 (0.02)
Pan y magnitude 19.34 (0.04)
E(B-V) 0.016

* 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.