WD 0808+423

All names: Gaia EDR3 921804126089222784, WDJ081149.35+421208.95, Gaia DR3 921804126089222784, SDSS J081149.34+421208.8, J0811+4212, Gaia DR2 921804126089222784, KUV 08084+4221, GALEX J081149.3+421208, SDSS J081149.35+421208.8, WD 0808+423

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Jewett et al. 2024 Kilic et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Gianninas et al. 2011 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 08 11 49.29 (0.09) 08 11 49.29 (0.1) 08 11 49.29 08 11 49.35 (0.09) 08 11 49.29 08 11 48.96
Declination 42 12 07.78 (0.08) 42 12 07.82 (0.08) 42 12 07.78 42 12 08.95 (0.08) 42 12 07.82 42 12 07.20
Spectral type DA DA DA DA DA DA3.2 DA
Effective temperature [K] 14595.0 (280) 14595.0 (280) 14597.0 (278) 14168.0 13811.0 15590.0 (421) 15965.0 (587)
log(g) [cgs] 8.91 (0.01) 8.91 8.91 (0.01) 8.90 8.85 8.98 (0.05) 8.96 (0.03)
Mass [M] 1.16 (0.007) 1.16 (0.008) 1.159 (0.008) 1.152 1.118 1.19 (0.02) 1.184 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 1.2000 (0.07) 1.1550 1.1380
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 10.89 (0.1) 10.87 (0.1) 10.89 10.89 (0.1) 10.87 (0.1)
Distance [pc] 91.83 (1) 91.98 (1) 59.00 91.83 91.82 (1) 91.98 (1)
Composition H H H
Proper motion (right ascension) [mas/yr] -39.61930968 (0.1) -39.5755567 (0.2) -39.619 (0.1) -39.5755567
Proper motion (declination) [mas/yr] -72.89030526 (0.09) -72.82454858 (0.2) -72.89 (0.09) -72.82454858
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude 16.76
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.80 (0.01) 17.78 (0.01)
g magnitude 17.62 (0.005) 17.66 (0.005)
r magnitude 17.85 (0.006) 17.86 (0.006)
i magnitude 18.11 (0.008) 18.08 (0.009)
z magnitude 18.40 (0.03) 18.37 (0.04)
G magnitude 17.74 (0.01) 17.77 17.74 17.74 (0.003) 17.77
BP magnitude 17.70 (0.01) 17.70 17.70
RP magnitude 17.78 (0.01) 17.79 17.79
Pan g magnitude 17.65 (0.006)
Pan r magnitude 17.85 (0.005)
Pan i magnitude 18.10 (0.003)
Pan z magnitude 18.33 (0.01)
Pan y magnitude 18.62 (0.08)
E(B-V) 0.003

* 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.