WD 0156+127

All names: GALEX J015935.0+130023, SDSS J015935.01+130023.50, Gaia EDR3 76913488358361472, SDSS J015935.01+130023.5, WD 0156+127, SDSS J015935.01+130023.4, Gaia DR3 76913488358361472, Gaia DR2 76913488358361472

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 Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 01 59 35.07 (0.09) 01 59 35.01 01 59 35.06 (0.1) 01 59 35.07 01 59 35.01 (0.09) 01 59 35.01 01 59 34.30 01 59 35.01
Declination 13 00 21.86 (0.08) 13 00 23.47 13 00 21.91 (0.1) 13 00 21.86 13 00 23.48 (0.08) 13 00 23.46 13 00 19.80 13 00 23.47
Spectral type DB DB DB DB DB3.8 DB DB
Effective temperature [K] 12319.0 12024.0 11409.0 11524.0 (83) 11803.0 (275) 13684.0 (104) 12930.0 (216)
log(g) [cgs] 8.18 8.09 8.02 8.00 (0) 8.07 (0.03) 8.99 (0.02) 8.93 (0.1)
Mass [M] 0.696 0.639 0.592 0.629 (0.03) 1.179 (0.06)
log(Luminosity) [L]
Cooling age [Gyr] 0.4487
log(H/He) <-6.552 <-5.86
log(C/He)
log(Ca/He) <-10.46
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] 7.90 (0.1) 7.86 (0.1) 7.90 7.90 (0.1)
Distance [pc] 126.56 (2) 127.20 (2) 126.00 126.56 126.56 (2)
Composition He
Proper motion (right ascension) [mas/yr] 47.85938366 (0.1) 47.56313151 (0.3) 47.859 (0.1) 50.2
Proper motion (declination) [mas/yr] -101.3100248 (0.1) -101.0962215 (0.2) -101.31 (0.1) -102.5
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.41 (0.009) 17.41 (0.009) 17.40 (0.02) 17.42 17.43 (0.02)
g magnitude 17.37 (0.005) 17.36 (0.005) 17.34 (0.02) 17.35 17.37 (0.02)
r magnitude 17.58 (0.006) 17.58 (0.006) 17.59 (0.02) 17.60 17.60 (0.02)
i magnitude 17.75 (0.007) 17.75 (0.007) 17.73 (0.01) 17.73 17.75 (0.01)
z magnitude 17.93 (0.02) 17.93 (0.02) 17.93 (0.03) 17.94 17.96 (0.02)
G magnitude 17.45 (0.008) 17.49 17.45 17.45 (0.003)
BP magnitude 17.45 (0.008) 17.42
RP magnitude 17.45 (0.01) 17.44
Pan g magnitude 17.41 (0.007)
Pan r magnitude 17.59 (0.005)
Pan i magnitude 17.77 (0.003)
Pan z magnitude 17.94 (0.005)
Pan y magnitude 18.07 (0.01)
E(B-V) 0.017

* 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.