SDSS J125424.62+582500.1

All names: SDSS J125424.62+582500.14, Gaia DR3 1577359862244048768, Gaia EDR3 1577359862244048768, GALEX J125424.6+582500, SDSS J125424.61+582500.1, Gaia DR2 1577359862244048768, SDSS J125424.62+582500.1

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Kepler et al. 2016 Koester & Kepler 2015 Simbad Vincent et al. 2023
Right ascension 12 54 24.62 (0.2) 12 54 24.62 12 54 24.62 (0.3) 12 54 24.62 (0.2)
Declination 58 25 00.07 (0.2) 58 25 00.11 58 25 00.07 (0.2) 58 25 00.07 (0.2)
Spectral type DBA DBA DBA DB
Effective temperature [K] 15678.0 15264.0 13683.0 45485.0 (183) 16175.0 (132)
log(g) [cgs] 8.38 8.25 8.10 8.02 (0.07) 8.53 (0.08)
Mass [M] 0.83 0.745 0.65 0.6459999999999999 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.3127
log(H/He) -5.262 -4.63 (0.4)
log(C/He)
log(Ca/He) <-6.54
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] 3.02 (0.2) 3.01 (0.3) 3.02 (0.2)
Distance [pc] 331.48 (26) 331.84 (34) 281.00 331.48 (26)
Composition He
Proper motion (right ascension) [mas/yr] 0.044861664 (0.2) 0.343238106 (0.6) 0.045 (0.2)
Proper motion (declination) [mas/yr] -0.229976954 (0.3) -0.270506897 (0.4) -0.23 (0.3)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.00 (0.02) 19.01 (0.03) 19.01 (0.02)
g magnitude 19.09 (0.01) 19.10 (0.02) 19.09 (0.01)
r magnitude 19.35 (0.01) 19.37 (0.03) 19.36 (0.01)
i magnitude 19.60 (0.02) 19.62 (0.03) 19.60 (0.02)
z magnitude 19.98 (0.09) 19.99 (0.09) 19.97 (0.09)
G magnitude 19.22 (0.03) 19.26 19.22 (0.004)
BP magnitude 19.19 (0.03) 19.13
RP magnitude 19.34 (0.05) 19.31
Pan g magnitude 19.14 (0.004)
Pan r magnitude 19.40 (0.009)
Pan i magnitude 19.64 (0.01)
Pan z magnitude 19.73 (0.08)
Pan y magnitude 19.85 (0.1)
E(B-V) 0.018

* 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.