WD 0231-096

All names: Gaia DR3 5175440642561752320, 6dFGS gJ023333.3-092325, SDSS J023333.41-092325.4, Gaia DR2 5175440642561752320, SDSS J023333.41-092325.40, GALEX J023333.3-092324, Gaia EDR3 5175440642561752320, WD 0231-096, SDSS J023333.43-092325.2, SDSS J023333.42-092325.3

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 02 33 33.42 (0.1) 02 33 33.42 02 33 33.42 (0.2) 02 33 33.42 02 33 33.42 (0.1) 02 33 33.42 02 33 32.86 02 33 33.42
Declination -09 23 25.43 (0.1) -09 23 25.41 -09 23 25.43 (0.2) -09 23 25.43 -09 23 25.48 (0.1) -09 23 25.34 -09 23 21.12 -09 23 25.34
Spectral type DB DB DB DBA DB DBA DB
Effective temperature [K] 17419.0 17254.0 16663.0 17837.0 (54) 17992.0 (1938) 18502.0 (177) 23420.0 (947)
log(g) [cgs] 7.88 8.12 8.09 7.83 (0.04) 8.14 (0.1) 8.26 (0.06) 8.32 (0.04)
Mass [M] 0.525 0.667 0.645 0.677 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.1664
log(H/He) -3.31 -3.03 (0.1)
log(C/He)
log(Ca/He) <-6.08
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] 3.58 (0.2) 3.64 (0.2) 3.58 3.58 (0.2)
Distance [pc] 279.30 (14) 274.97 (18) 334.00 279.30 279.30 (14)
Composition He
Proper motion (right ascension) [mas/yr] 7.051511642 (0.2) 6.979239823 (0.4) 7.052 (0.2) 3.9
Proper motion (declination) [mas/yr] 3.140845498 (0.2) 3.769887116 (0.4) 3.141 (0.2) 6.2
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.94
V magnitude
R magnitude 18.61
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.09 (0.01) 18.09 (0.01) 18.14 (0.02) 18.10 18.14 (0.02)
g magnitude 18.22 (0.007) 18.22 (0.007) 18.15 (0.02) 18.25 18.17 (0.02)
r magnitude 18.52 (0.009) 18.52 (0.009) 18.50 (0.02) 18.52 18.52 (0.02)
i magnitude 18.76 (0.01) 18.76 (0.01) 18.77 (0.02) 18.78 18.77 (0.02)
z magnitude 19.00 (0.06) 19.00 (0.06) 18.87 (0.06) 19.00 18.87 (0.06)
G magnitude 18.35 (0.02) 18.39 18.35 18.35 (0.004)
BP magnitude 18.30 (0.02) 18.27
RP magnitude 18.47 (0.03) 18.50
Pan g magnitude 18.23 (0.006)
Pan r magnitude 18.51 (0.003)
Pan i magnitude 18.80 (0.006)
Pan z magnitude 19.02 (0.01)
Pan y magnitude 19.21 (0.04)
E(B-V) 0.022

* 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.