SDSS J095600.58+224810.7

All names: Gaia EDR3 641873138581682560, Gaia DR3 641873138581682560, SDSS J095600.58+224810.7, SDSS J095600.58+224810.6, SDSS J095600.58+224810.70, GALEX J095600.6+224810, LAMOST J095600.58+224810.7, Gaia DR2 641873138581682560

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Guo et al. 2015 Koester & Kepler 2015 Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 56 00.53 (0.2) 09 56 00.58 09 56 00.54 (0.3) 09 56 00.53 09 56 00.60 (0.2) 09 56 00.58
Declination 22 48 10.31 (0.1) 22 48 10.68 22 48 10.32 (0.3) 22 48 10.31 22 48 10.75 (0.1) 22 48 10.71
Spectral type DB:DC DC? DB DB DB:DC DB
Effective temperature [K] 11315.0 12315.0 11983.0 11302.0 (135) 11234.0 (404) 12594.0 (299)
log(g) [cgs] 7.21 8.20 8.17 8.00 (0) 8.10 (0.06) 8.98 (0.2)
Mass [M] 0.255 0.707 0.691 0.645 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 0.5039
log(H/He) -5.717 -5.24 (0.2)
log(C/He)
log(Ca/He) <-10.31
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 (0.2) 5.32 (0.3) 5.44 5.44 (0.2)
Distance [pc] 183.77 (6) 187.96 (9) 189.00 183.77 183.77 (6)
Composition He
Proper motion (right ascension) [mas/yr] -56.38302104 (0.2) -57.23441937 (0.4) -56.383 (0.2)
Proper motion (declination) [mas/yr] -27.70549932 (0.2) -27.75118274 (0.5) -27.705 (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 18.37 (0.01) 18.37 (0.01) 18.37 (0.02)
g magnitude 18.34 (0.007) 18.34 (0.007) 18.34 (0.02)
r magnitude 18.53 (0.009) 18.53 (0.009) 18.54 (0.02)
i magnitude 18.73 (0.01) 18.73 (0.01) 18.73 (0.02)
z magnitude 18.94 (0.04) 18.93 (0.04) 18.93 (0.04)
G magnitude 18.42 (0.01) 18.45 18.42 18.42 (0.003)
BP magnitude 18.45 (0.01) 18.39
RP magnitude 18.37 (0.03) 18.44
Pan g magnitude 18.37 (0.004)
Pan r magnitude 18.54 (0.01)
Pan i magnitude 18.74 (0.004)
Pan z magnitude 18.94 (0.008)
Pan y magnitude 19.08 (0.02)
E(B-V) 0.012

* 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.