SDSS J154157.75+124743.2

All names: Gaia DR2 1190925883502937216, SDSS J154157.75+124743.20, Gaia EDR3 1190925883502937216, SDSS J154157.73+124743.1, SDSS J154157.74+124743.1, Gaia DR3 1190925883502937216, SDSS J154157.75+124743.2

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 15 41 57.73 (0.2) 15 41 57.75 15 41 57.73 (0.3) 15 41 57.76 (0.2) 15 41 57.75
Declination 12 47 43.16 (0.2) 12 47 43.18 12 47 43.16 (0.3) 12 47 43.18 (0.2) 12 47 43.15
Spectral type DB DB DB DB+MS
Effective temperature [K] 17265.0 19433.0 13808.0 18162.0 (373)
log(g) [cgs] 8.12 8.15 7.74 8.45 (0.1)
Mass [M] 0.666 0.69 0.448 0.869 (0.07)
log(Luminosity) [L]
Cooling age [Gyr] 0.1766
log(H/He) <-5.703
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] 2.37 (0.3) 2.35 (0.4) 2.37 (0.3)
Distance [pc] 422.71 (48) 425.02 (70) 422.71 (48)
Composition He
Proper motion (right ascension) [mas/yr] -24.30975722 (0.3) -23.57994578 (0.6) -24.31 (0.3)
Proper motion (declination) [mas/yr] -1.410408346 (0.3) -1.23781664 (0.7) -1.41 (0.3)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.02 (0.02) 19.02 (0.02) 19.00 (0.03)
g magnitude 19.07 (0.01) 19.07 (0.01) 19.09 (0.02)
r magnitude 19.42 (0.02) 19.42 (0.01) 19.41 (0.03)
i magnitude 19.62 (0.02) 19.62 (0.02) 19.62 (0.03)
z magnitude 19.74 (0.09) 19.74 (0.09) 19.71 (0.09)
G magnitude 19.22 (0.02) 19.29 19.22 (0.004)
BP magnitude 19.17 (0.02) 19.03
RP magnitude 19.40 (0.04) 19.12
Pan g magnitude 19.13 (0.01)
Pan r magnitude 19.40 (0.01)
Pan i magnitude 19.64 (0.01)
Pan z magnitude 19.85 (0.03)
Pan y magnitude 19.75 (0.06)
E(B-V) 0.035

* 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.