SDSS J125743.69+252846.6

All names: Gaia DR3 3958169429665225600, GALEX J125743.7+252846, SDSS J125743.69+252846.60, Gaia DR2 3958169429665225600, Gaia EDR3 3958169429665225600, SDSS J125743.69+252846.6

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 Kleinman et al. 2013 Vincent et al. 2023
Right ascension 12 57 43.66 (0.4) 12 57 43.69 12 57 43.67 (0.5) 12 57 43.70 (0.4) 12 57 43.69
Declination 25 28 46.58 (0.3) 25 28 46.63 25 28 46.59 (0.5) 25 28 46.64 (0.3) 25 28 46.60
Spectral type DBA: DBA DBA: DB
Effective temperature [K] 14445.0 14673.0 14764.0 14375.0 (381)
log(g) [cgs] 7.13 8.82 8.85 7.94 (0.4)
Mass [M] 0.25 1.103 1.117
log(Luminosity) [L]
Cooling age [Gyr] 0.9522
log(H/He) -4.052
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] 2.58 (0.5) 3.61 (0.7) 2.58 (0.5)
Distance [pc] 388.25 (78) 277.15 (53) 388.24 (78)
Composition He
Proper motion (right ascension) [mas/yr] -32.37890292 (0.6) -34.01263381 (1) -32.379 (0.6)
Proper motion (declination) [mas/yr] -3.534992378 (0.6) -1.887686015 (0.9) -3.535 (0.6)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.79 (0.03) 19.79 (0.03) 19.76 (0.03)
g magnitude 19.85 (0.01) 19.84 (0.01) 19.83 (0.02)
r magnitude 20.10 (0.02) 20.10 (0.02) 20.09 (0.02)
i magnitude 20.42 (0.04) 20.42 (0.04) 20.41 (0.04)
z magnitude 20.68 (0.2) 20.68 (0.2) 20.71 (0.2)
G magnitude 19.96 (0.05) 20.01 19.96 (0.005)
BP magnitude 19.98 (0.05) 19.94
RP magnitude 19.99 (0.07) 20.18
Pan g magnitude 19.84 (0.01)
Pan r magnitude 20.08 (0.01)
Pan i magnitude 20.33 (0.03)
Pan z magnitude 20.61 (0.04)
Pan y magnitude
E(B-V) 0.016

* 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.