SDSS J085953.76+464036.1

All names: SDSS J085953.77+464036.2, Gaia DR3 1010918718886995584, Gaia DR2 1010918718886995584, GALEX J085953.8+464036, US 2086, SDSS J085953.76+464036.1, Gaia EDR3 1010918718886995584, SDSS J085953.78+464036.1, WD 0856+468, SDSS J085953.78+464036.2, SDSS J085953.77+464036.1, SDSS J085953.78+464036.10

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 08 59 53.79 (0.2) 08 59 53.78 08 59 53.79 (0.2) 08 59 53.77 (0.2) 08 59 53.78 08 59 53.40 08 59 53.78
Declination 46 40 36.11 (0.1) 46 40 36.20 46 40 36.11 (0.2) 46 40 36.18 (0.1) 46 40 36.24 46 40 35.04 46 40 36.11
Spectral type DB DB DB DB DBA: DB
Effective temperature [K] 17019.0 17901.0 15282.0 17471.0 (201) 17379.0 (216) 17302.0 (261)
log(g) [cgs] 7.81 7.73 7.48 7.81 (0.1) 7.85 (0.1) 7.81 (0.1)
Mass [M] 0.492 0.456 0.347
log(Luminosity) [L]
Cooling age [Gyr] 0.0987
log(H/He) -4.991 <-4.5
log(C/He)
log(Ca/He) <-5.48
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] 2.18 (0.3) 1.95 (0.3) 2.18 (0.3)
Distance [pc] 458.46 (54) 511.99 (86) 465.00 458.46 (54)
Composition He
Proper motion (right ascension) [mas/yr] 11.74646028 (0.3) 11.37813138 (0.4) 11.746 (0.3) 9.3
Proper motion (declination) [mas/yr] -4.200382032 (0.2) -3.621786688 (0.3) -4.2 (0.2) -4.6
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 19.00
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.85 (0.02) 18.85 (0.02) 18.81 (0.03) 18.80 18.84 (0.03)
g magnitude 18.88 (0.009) 18.88 (0.009) 18.89 (0.03) 18.88 18.90 (0.03)
r magnitude 19.21 (0.01) 19.21 (0.01) 19.20 (0.02) 19.19 19.20 (0.02)
i magnitude 19.46 (0.02) 19.46 (0.02) 19.43 (0.03) 19.42 19.43 (0.02)
z magnitude 19.57 (0.08) 19.57 (0.08) 19.74 (0.08) 19.73 19.74 (0.08)
G magnitude 19.03 (0.02) 19.07 19.03 (0.004)
BP magnitude 18.96 (0.02) 18.91
RP magnitude 19.07 (0.04) 19.12
Pan g magnitude 18.91 (0.01)
Pan r magnitude 19.22 (0.02)
Pan i magnitude 19.45 (0.01)
Pan z magnitude 19.66 (0.02)
Pan y magnitude 19.89 (0.08)
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.