SDSS J031639.27+001746.8

All names: GALEX J031639.2+001746, SDSS J031639.27+001746.8, SDSS J031639.26+001746.8, WD 0314+001, Gaia DR2 3266115542465234176, Gaia EDR3 3266115542465234176, SDSS J031639.27+001746.9, Gaia DR3 3266115542465234176, SDSS J031639.27+001746.90

Parameter Unit Gaia EDR3 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 03 16 39.28 (0.6) 03 16 39.27 03 16 39.28 (0.6) 03 16 39.27 (0.6) 03 16 39.27 03 16 38.93 03 16 39.27
Declination 00 17 46.60 (0.6) 00 17 46.81 00 17 46.61 (0.6) 00 17 46.86 (0.6) 00 17 46.83 00 17 47.76 00 17 46.89
Spectral type DB: DB DB: DB: DB DB
Effective temperature [K] 13528.0 14270.0 18165.0 15076.0 (532) 14554.0 (744)
log(g) [cgs] 6.79 7.57 8.27 7.59 (0.4) 8.14 (0.6)
Mass [M] 0.185 0.377 0.759
log(Luminosity) [L]
Cooling age [Gyr] 0.1776
log(H/He) <-6.026
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] 1.39 (0.7) 1.38 (0.7) 1.39 (0.7)
Distance [pc] 720.55 (376) 727.23 (395) 720.56 (376)
Composition He
Proper motion (right ascension) [mas/yr] 12.60674953 (1) 11.92873568 (2) 12.607 (1) 5.4
Proper motion (declination) [mas/yr] -16.0484891 (0.9) -15.96786478 (2) -16.048 (0.9) -18.8
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.40 (0.05) 20.40 (0.05) 20.23 (0.06) 20.22 20.24 (0.06)
g magnitude 20.26 (0.02) 20.26 (0.02) 20.19 (0.03) 20.19 20.21 (0.02)
r magnitude 20.49 (0.03) 20.49 (0.03) 20.41 (0.03) 20.41 20.41 (0.03)
i magnitude 20.61 (0.04) 20.62 (0.04) 20.59 (0.05) 20.59 20.59 (0.05)
z magnitude 21.50 (0.3) 21.03 (0.3) 21.07 (0.3) 21.07 21.06 (0.3)
G magnitude 20.32 (0.1) 20.37 20.32 (0.009)
BP magnitude 20.60 (0.1) 20.48
RP magnitude 20.33 (0.2) 20.35
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.064

* 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.