SDSS J094447.51+062342.3

All names: Gaia EDR3 3853282651804915328, SDSS J094447.51+062342.4, SDSS J094447.49+062342.3, SDSS J094447.51+062342.40, GALEX J094447.5+062342, Gaia DR2 3853282651804915328, Gaia DR3 3853282651804915328, SDSS J094447.50+062342.3, WD 0942+066, SDSS J094447.51+062342.3

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 44 47.49 (0.3) 09 44 47.50 09 44 47.49 (0.5) 09 44 47.51 (0.3) 09 44 47.51 09 44 47.02 09 44 47.51
Declination 06 23 42.33 (0.3) 06 23 42.32 06 23 42.33 (0.6) 06 23 42.37 (0.3) 06 23 42.39 06 23 40.56 06 23 42.39
Spectral type DB DB DB DB DBAH: DB
Effective temperature [K] 17932.0 16555.0 14673.0 18006.0 (264) 17898.0 (350)
log(g) [cgs] 8.23 8.37 8.25 8.27 (0.1) 8.18 (0.1)
Mass [M] 0.737 0.826 0.743
log(Luminosity) [L]
Cooling age [Gyr] 0.3265
log(H/He) <-5.547
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] 2.10 (0.3) 3.36 (0.6) 2.10 (0.3)
Distance [pc] 476.63 (68) 297.93 (55) 476.64 (68)
Composition He
Proper motion (right ascension) [mas/yr] -17.91121361 (0.3) -18.31299067 (0.8) -17.911 (0.3) -16.1
Proper motion (declination) [mas/yr] -2.878659663 (0.3) -3.806628267 (0.9) -2.879 (0.3) 0.1
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.78 (0.02) 18.78 (0.02) 18.82 (0.03) 18.81 18.82 (0.03)
g magnitude 18.93 (0.009) 18.93 (0.009) 18.91 (0.02) 18.91 18.91 (0.02)
r magnitude 19.19 (0.01) 19.19 (0.01) 19.21 (0.02) 19.21 19.20 (0.02)
i magnitude 19.46 (0.02) 19.46 (0.02) 19.46 (0.03) 19.46 19.46 (0.03)
z magnitude 19.70 (0.07) 19.70 (0.07) 19.73 (0.07) 19.72 19.73 (0.07)
G magnitude 19.06 (0.03) 19.11 19.06 (0.004)
BP magnitude 19.10 (0.03) 19.00
RP magnitude 19.21 (0.07) 19.20
Pan g magnitude 18.96 (0.007)
Pan r magnitude 19.23 (0.007)
Pan i magnitude 19.49 (0.01)
Pan z magnitude 19.72 (0.02)
Pan y magnitude 19.75 (0.04)
E(B-V) 0.026

* 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.