SDSS J085047.18+370936.7

All names: Gaia DR2 717986182474354560, Gaia EDR3 717986182474354560, GALEX J085047.2+370937, SDSS J085047.18+370936.70, SDSS J085047.18+370936.7, WD 0847+373, Gaia DR3 717986182474354560

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 08 50 47.17 (0.9) 08 50 47.19 08 50 47.17 (1) 08 50 47.19 (0.9) 08 50 47.18 08 50 47.33 08 50 47.18
Declination 37 09 36.42 (0.6) 37 09 36.67 37 09 36.43 (1) 37 09 36.70 (0.6) 37 09 36.70 37 09 33.48 37 09 36.68
Spectral type DB DB DB DB DB: DB
Effective temperature [K] 14530.0 10595.0 11005.0 14660.0 (469) 14359.0 (511)
log(g) [cgs] 7.72 8.89 8.97 8.11 (0.4) 7.96 (0.4)
Mass [M] 0.444 1.134 1.172
log(Luminosity) [L]
Cooling age [Gyr] 1.9420
log(H/He) -4.821
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] 2.43 (1) 5.29 (2) 2.43 (1)
Distance [pc] 410.86 (180) 189.06 (69) 410.86 (180)
Composition He
Proper motion (right ascension) [mas/yr] -20.75436546 (1) -10.57524314 (2) -20.754 (1) -24.9
Proper motion (declination) [mas/yr] -17.47639064 (1) -9.790985991 (2) -17.476 (1) -18.2
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.15 (0.04) 20.03 (0.04) 20.03 (0.04) 20.03 20.00 (0.04)
g magnitude 19.98 (0.02) 19.97 (0.02) 19.98 (0.03) 19.98 19.94 (0.03)
r magnitude 20.17 (0.02) 20.17 (0.02) 20.17 (0.03) 20.17 20.16 (0.02)
i magnitude 20.34 (0.03) 20.43 (0.04) 20.43 (0.04) 20.42 20.41 (0.04)
z magnitude 20.60 (0.1) 20.90 (0.2) 20.83 (0.2) 20.82 20.83 (0.2)
G magnitude 20.36 (0.06) 20.32 20.36 (0.009)
BP magnitude 20.11 (0.06) 19.89
RP magnitude 20.05 (0.09) 20.08
Pan g magnitude 19.98 (0.02)
Pan r magnitude 20.18 (0.01)
Pan i magnitude 20.42 (0.02)
Pan z magnitude 20.56 (0.03)
Pan y magnitude
E(B-V) 0.024

* 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.