SDSS J081058.70+501146.0

All names: SDSS J081058.69+501146.0, SDSS J081058.71+501145.9, GALEX J081058.6+501145, Gaia DR2 935131581407603840, SDSS J081058.71+501145.89, SDSS J081058.70+501146.0, Gaia DR3 935131581407603840, SDSS J081058.71+501145.8, Gaia EDR3 935131581407603840, USNO-A2.0 1350-07319658

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Kepler et al. 2015 Vincent et al. 2024 Simbad Vincent et al. 2023
Right ascension 08 10 58.72 (0.09) 08 10 58.70 08 10 58.72 (0.1) 08 10 58.72 08 10 58.70 (0.09)
Declination 50 11 45.74 (0.07) 50 11 46.05 50 11 45.75 (0.09) 50 11 45.74 50 11 46.06 (0.07)
Spectral type DB DB DB DB DB
Effective temperature [K] 15254.0 14460.0 13601.0 15342.0 (34) 15469.0 (54) 14342.0 (501)
log(g) [cgs] 8.06 8.13 8.04 8.00 (0) 8.12 (0.004) 8.10 (0.05)
Mass [M] 0.627 0.667 0.611 0.7040000000000001 (0.02) 0.647 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.2860
log(H/He) -6.3 <-5.7
log(C/He)
log(Ca/He) <-7.59
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] 5.44 (0.1) 5.51 (0.2) 5.44 5.44 (0.1)
Distance [pc] 183.81 (4) 181.34 (6) 206.00 183.81 183.81 (4)
Composition He
Proper motion (right ascension) [mas/yr] 11.43433203 (0.1) 11.16351019 (0.2) 11.434 (0.1)
Proper motion (declination) [mas/yr] -19.6922075 (0.1) -19.85221934 (0.2) -19.692 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.10 (0.3)
V magnitude
R magnitude 18.00 (0.3)
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.68 (0.01) 17.68 (0.03) 17.68 (0.01)
g magnitude 17.73 (0.005) 17.76 (0.02) 17.73 (0.005)
r magnitude 18.00 (0.007) 18.02 (0.02) 18.00 (0.007)
i magnitude 18.21 (0.01) 18.22 (0.03) 18.21 (0.01)
z magnitude 18.49 (0.04) 18.50 (0.04) 18.49 (0.04)
G magnitude 17.84 (0.01) 17.87 17.84 17.84 (0.003)
BP magnitude 17.80 (0.01) 17.75
RP magnitude 17.93 (0.01) 17.93
Pan g magnitude 17.76 (0.005)
Pan r magnitude 17.99 (0.005)
Pan i magnitude 18.24 (0.002)
Pan z magnitude 18.45 (0.01)
Pan y magnitude 18.54 (0.03)
E(B-V) 0.011

* 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.