WD 0224+683

All names: Gaia DR2 517772326308392192, GALEX J022849.9+683535, Lan 142, WD 0224+683, Gaia EDR3 517772326308392192, Gaia DR3 517772326308392192

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD HE Gaia DR2 Stilism Bergeron et al. 2011 Lepine et al. 2011 Vincent et al. 2024 Simbad
Right ascension 02 28 49.96 (0.06) 02 28 49.96 (0.09) 02 28 49.96 02 28 49.91 (0.06)
Declination 68 35 36.24 (0.07) 68 35 36.26 (0.08) 68 35 36.24 68 35 37.03 (0.07)
Spectral type DB DB DB3.0 DB DB3
Effective temperature [K] 13798.0 17830.0 (474) 18020.0 (507) 14056.0 (373)
log(g) [cgs] 7.73 8.19 (0.1) 8.23 (0.2) 7.72 (0.04)
Mass [M] 0.443 0.71 (0.06) 0.74 (0.1) 0.44 (0.03)
log(Luminosity) [L] -1.95
Cooling age [Gyr] 0.1748 0.1622 0.1700
log(H/He) <-4.88 (0.5) <-5.08
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] 4.60 (0.09) 4.66 (0.1) 4.60 4.60 (0.09)
Distance [pc] 217.60 (4) 214.46 (5) 209.00 203.00 217.60 217.59 (4)
Composition He He
Proper motion (right ascension) [mas/yr] 15.04918089 (0.08) 15.04907974 (0.2) 15.049 (0.08)
Proper motion (declination) [mas/yr] -49.71822219 (0.1) -49.9137654 (0.2) -49.718 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.60
V magnitude 17.78
R magnitude 18.00
I magnitude 18.30
J magnitude
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 17.70 (0.006) 17.73 17.70 17.70 (0.003)
BP magnitude 17.66 (0.006) 17.64
RP magnitude 17.83 (0.01) 17.78
Pan g magnitude 17.65 (0.004)
Pan r magnitude 17.88 (0.007)
Pan i magnitude 18.12 (0.005)
Pan z magnitude 18.35 (0.01)
Pan y magnitude 18.47 (0.03)
E(B-V) 0.049

* 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.