SDSS J004646.15+002430.9

All names: GALEX J004646.1+002431, SDSS J004646.16+002430.9, WD 0044+001, SDSS J004646.16+002430.8, Gaia DR2 2549074978645621632, Gaia EDR3 2549074978645621632, SDSS J004646.15+002430.9, Gaia DR3 2549074978645621632, J0046+0024

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Coutu et al. 2019 Gaia DR2 Stilism Dufour et al. 2007 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 00 46 46.15 (0.3) 00 46 46.16 00 46 46.16 00 46 46.15 (0.6) 00 46 46.15 00 46 46.16 (0.3) 00 46 45.82 00 46 46.16
Declination 00 24 30.88 (0.2) 00 24 30.82 00 24 30.93 00 24 30.88 (0.3) 00 24 30.88 00 24 30.93 (0.2) 00 24 28.44 00 24 30.92
Spectral type DZ DZ DZ DZ DZ5.7 DZ DZ
Effective temperature [K] 9866.0 (266) 8770.0 (220) 9241.0 (577) 10267.0 (157)
log(g) [cgs] 8.29 8.00 8.01 (0.1) 8.93 (0.7)
Mass [M] 0.7629 0.582 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.9780
log(H/He) <-5.7168 <-4.0
log(C/He)
log(Ca/He) -7.6953 (0.2) -8.57 (0.09)
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] 4.38 (0.4) 4.33 4.33 (0.7) 4.38 4.38 (0.4)
Distance [pc] 228.47 (20) 230.86 (40) 230.86 (40) 225.00 228.47 228.47 (20)
Composition He He
Proper motion (right ascension) [mas/yr] -7.344703043 (0.4) -6.161963836 (1) -7.345 (0.4)
Proper motion (declination) [mas/yr] -3.255531592 (0.4) -3.158037594 (0.6) -3.256 (0.4)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.63 (0.03) 19.63 (0.03) 19.65 (0.04)
g magnitude 19.38 (0.01) 19.38 (0.01) 19.39 (0.02)
r magnitude 19.49 (0.01) 19.49 (0.01) 19.44 (0.02)
i magnitude 19.59 (0.02) 19.59 (0.02) 19.64 (0.02)
z magnitude 19.88 (0.09) 19.88 (0.09) 19.84 (0.1)
G magnitude 19.40 (0.04) 19.46 19.40 19.40 (0.004)
BP magnitude 19.54 (0.04) 19.48
RP magnitude 19.33 (0.05) 19.25
Pan g magnitude 19.38 (0.01)
Pan r magnitude 19.44 (0.01)
Pan i magnitude 19.66 (0.01)
Pan z magnitude 19.85 (0.03)
Pan y magnitude 19.81 (0.1)
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.