SDSS J092903.70+382224.3

All names: WD 0925+385, Gaia DR2 811332413275038208, Gaia DR3 811332413275038208, SDSS J092903.68+382224.3, SDSS J092903.70+382224.3, GALEX J092903.7+382224, SDSS J092903.70+382224.30, Gaia EDR3 811332413275038208

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 29 03.67 (0.2) 09 29 03.71 09 29 03.67 (0.4) 09 29 03.67 09 29 03.71 (0.2) 09 29 03.70 09 29 03.53 09 29 03.70
Declination 38 22 24.31 (0.2) 38 22 24.35 38 22 24.31 (0.4) 38 22 24.31 38 22 24.33 (0.2) 38 22 24.35 38 22 21.72 38 22 24.35
Spectral type DB DB DB DB_A: DB DBAH: DB
Effective temperature [K] 15404.0 13441.0 13198.0 14116.0 (779) 15149.0 (223) 14571.0 (257)
log(g) [cgs] 8.87 7.79 7.78 8.19 (0.09) 8.47 (0.2) 8.37 (0.2)
Mass [M] 1.127 0.471 0.465 0.703 (0.08)
log(Luminosity) [L]
Cooling age [Gyr] 0.2140
log(H/He) -4.939
log(C/He)
log(Ca/He)
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] 3.83 (0.2) 3.06 (0.4) 3.83 3.83 (0.2)
Distance [pc] 261.24 (16) 326.54 (43) 261.24 261.24 (16)
Composition He
Proper motion (right ascension) [mas/yr] -29.97467447 (0.2) -30.39051403 (0.5) -29.975 (0.2) -29.9
Proper motion (declination) [mas/yr] -1.36323788 (0.3) -1.283915082 (0.7) -1.363 (0.3) -4.2
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.70 (0.02) 18.70 (0.02) 18.70 (0.02) 18.69 18.71 (0.02)
g magnitude 18.66 (0.008) 18.66 (0.008) 18.68 (0.02) 18.67 18.68 (0.02)
r magnitude 18.94 (0.01) 18.94 (0.01) 18.96 (0.02) 18.95 18.97 (0.02)
i magnitude 19.13 (0.02) 19.13 (0.02) 19.15 (0.02) 19.14 19.16 (0.02)
z magnitude 19.54 (0.1) 19.54 (0.1) 19.55 (0.09) 19.54 19.55 (0.09)
G magnitude 18.83 (0.02) 18.86 18.83 18.83 (0.003)
BP magnitude 18.78 (0.02) 18.70
RP magnitude 18.88 (0.03) 18.81
Pan g magnitude 18.75 (0.004)
Pan r magnitude 18.96 (0.007)
Pan i magnitude 19.19 (0.007)
Pan z magnitude 19.40 (0.02)
Pan y magnitude 19.54 (0.04)
E(B-V) 0.013

* 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.