SDSS J143739.13+315248.8

All names: Gaia EDR3 1286229592893341184, GALEX J143739.0+315247, Gaia DR3 1286229592893341184, SDSS J143739.12+315248.7, SDSS J143739.13+315248.80, SDSS J143739.13+315248.8, Gaia DR2 1286229592893341184, SDSS J143739.13+315248.7

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Hardy et al. 2023b Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 14 37 39.11 (0.2) 14 37 39.13 14 37 39.11 (0.3) 14 37 39.13 (0.2) 14 37 39.13
Declination 31 52 48.49 (0.2) 31 52 48.77 31 52 48.50 (0.3) 31 52 48.86 (0.2) 31 52 48.79
Spectral type HotDC DBH DBH DBH hotDQ
Effective temperature [K] 27607.3 (1415) 51647.0 25443.0 20314.0 15755.0 (763)
log(g) [cgs] 9.17 (0.7) 8.36 9.23 9.05 9.92 (0.2)
Mass [M] 1.256813828 (0.8) 0.855 1.276 1.212
log(Luminosity) [L]
Cooling age [Gyr] 0.5500
log(H/He) <-3.01
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] 3.22 (0.4) 3.38 (0.5) 3.22 (0.4)
Distance [pc] 311.02 (35) 295.79 (42) 311.01 (35)
Composition He
Proper motion (right ascension) [mas/yr] -18.17835483 (0.3) -17.330067 (0.6) -18.178 (0.3)
Proper motion (declination) [mas/yr] -23.1033536 (0.4) -22.69806974 (0.8) -23.103 (0.4)
Variability
Magnetic yes
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.50 (0.03) 19.50 (0.03) 19.51 (0.03)
g magnitude 19.73 (0.01) 19.73 (0.01) 19.74 (0.03)
r magnitude 20.11 (0.02) 20.11 (0.02) 20.15 (0.02)
i magnitude 20.40 (0.04) 20.40 (0.04) 20.42 (0.04)
z magnitude 20.56 (0.1) 20.56 (0.1) 20.53 (0.1)
G magnitude 19.94 (0.04) 19.99 19.94 (0.004)
BP magnitude 19.89 (0.04) 19.78
RP magnitude 20.11 (0.07) 20.08
Pan g magnitude 19.79 (0.009)
Pan r magnitude 20.11 (0.02)
Pan i magnitude 20.42 (0.02)
Pan z magnitude 20.61 (0.06)
Pan y magnitude
E(B-V) 0.019

* 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.