SDSS J125724.13+592235.8

All names: Gaia DR3 1578958728245265024, SDSS J125724.13+592236.00, Gaia EDR3 1578958728245265024, SDSS J125724.13+592235.8, GALEX J125724.2+592236, SDSS J125724.13+592235.9, SDSS J125724.13+592236.0, Gaia DR2 1578958728245265024

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 Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 12 57 24.07 (0.08) 12 57 24.13 12 57 24.07 (0.1) 12 57 24.07 12 57 24.14 (0.08) 12 57 24.13
Declination 59 22 36.03 (0.07) 59 22 35.88 59 22 36.03 (0.09) 59 22 36.03 59 22 35.93 (0.07) 59 22 36.00
Spectral type DB DB DB DBAH: DB
Effective temperature [K] 14233.0 13108.0 13009.0 14060.0 (38) 13911.0 (432) 14647.0 (68)
log(g) [cgs] 8.22 8.00 7.98 8.00 (0) 8.05 (0.04) 8.61 (0.04)
Mass [M] 0.725 0.584 0.576 0.615 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 0.2971
log(H/He) -5.314 -5.13 (0.1)
log(C/He)
log(Ca/He) <-9.01
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] 5.32 (0.08) 5.43 (0.1) 5.32 5.32 (0.08)
Distance [pc] 187.95 (3) 184.01 (4) 198.00 187.95 187.95 (3)
Composition He
Proper motion (right ascension) [mas/yr] -31.73140629 (0.1) -31.76375365 (0.3) -31.731 (0.1)
Proper motion (declination) [mas/yr] 6.580819378 (0.1) 6.408636834 (0.2) 6.581 (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 17.78 (0.01) 17.78 (0.01) 17.79 (0.04)
g magnitude 17.77 (0.006) 17.77 (0.006) 17.80 (0.03)
r magnitude 18.04 (0.007) 18.04 (0.007) 18.02 (0.3)
i magnitude 18.27 (0.009) 18.27 (0.009) 18.24 (0.03)
z magnitude 18.51 (0.03) 18.51 (0.03) 18.47 (0.04)
G magnitude 17.89 (0.01) 17.92 17.89 17.89 (0.003)
BP magnitude 17.86 (0.01) 17.80
RP magnitude 17.95 (0.02) 17.96
Pan g magnitude 17.82 (0.003)
Pan r magnitude 18.04 (0.003)
Pan i magnitude 18.27 (0.005)
Pan z magnitude 18.49 (0.009)
Pan y magnitude 18.58 (0.02)
E(B-V) 0.014

* 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.