SDSS J093832.79+474050.6

All names: Gaia DR2 824699760249852544, Gaia DR3 824699760249852544, GALEX J093832.8+474050, SDSS J093832.79+474050.6, SDSS J093832.79+474050.61, Gaia EDR3 824699760249852544

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Kepler et al. 2016 Vincent et al. 2024 Simbad Vincent et al. 2023
Right ascension 09 38 32.77 (0.2) 09 38 32.79 09 38 32.77 (0.2) 09 38 32.77 09 38 32.79 (0.2)
Declination 47 40 50.14 (0.1) 47 40 50.61 47 40 50.16 (0.2) 47 40 50.14 47 40 50.66 (0.1)
Spectral type DBH: DBH: DC DBH DC
Effective temperature [K] 10446.0 10430.0 10406.0 9714.0 (1000) 9580.0 (452)
log(g) [cgs] 6.96 8.54 8.53 6.68 (0) 8.38 (0.08)
Mass [M] 0.196 0.93 0.926 0.1989999999999999 (0.1) 0.822 (0.07)
log(Luminosity) [L]
Cooling age [Gyr] 1.3960
log(H/He) <-6.18
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] 6.18 (0.2) 6.15 (0.3) 6.18 6.18 (0.2)
Distance [pc] 161.78 (6) 162.68 (8) 161.78 161.78 (6)
Composition He
Proper motion (right ascension) [mas/yr] -17.59309545 (0.2) -16.7434221 (0.4) -17.593 (0.2)
Proper motion (declination) [mas/yr] -32.36124935 (0.2) -32.80600423 (0.4) -32.361 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.23 (0.03) 19.23 (0.04) 19.24 (0.03)
g magnitude 19.03 (0.009) 19.03 (0.02) 19.03 (0.009)
r magnitude 19.18 (0.01) 19.18 (0.02) 19.18 (0.01)
i magnitude 19.30 (0.02) 19.30 (0.02) 19.30 (0.02)
z magnitude 19.47 (0.08) 19.45 (0.08) 19.46 (0.08)
G magnitude 19.06 (0.02) 19.10 19.06 19.06 (0.004)
BP magnitude 19.17 (0.02) 19.10
RP magnitude 19.00 (0.02) 18.99
Pan g magnitude 19.05 (0.02)
Pan r magnitude 19.12 (0.01)
Pan i magnitude 19.31 (0.01)
Pan z magnitude 19.49 (0.01)
Pan y magnitude 19.37 (0.09)
E(B-V) 0.009

* 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.