GALEX 2678984274684675503

All names: Gaia DR3 1625565372583611648, GALEX 2678984274684675503, Gaia DR2 1625565372583611648, Gaia EDR3 1625565372583611648, SDSS J163349.59+615623.7, USNO-A2.0 1500-06105915, SDSS J163349.59+615623.70, SDSS J163349.58+615623.7

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) MWDD HE Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 16 33 49.59 (0.3) 16 33 49.58 16 33 49.59 (0.4) 16 33 49.60 (0.4) 16 33 49.59
Declination 61 56 23.48 (0.4) 61 56 23.75 61 56 23.49 (0.5) 61 56 23.81 (0.5) 61 56 23.73
Spectral type DB DB DB DB
Effective temperature [K] 16138.0 13318.0 16046.0 (296)
log(g) [cgs] 7.99 6.13 8.07 (0.2)
Mass [M] 0.583 0.078 0.626 (0.1)
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He) -5.109
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] 1.53 (0.3) 0.65 (0.5) 0.65 (0.5)
Distance [pc] 655.25 (142) 1532.14 (1181) 1532.10 (1181)
Composition He
Proper motion (right ascension) [mas/yr] -4.591519788 (0.4) -4.723505709 (1) -4.724 (1)
Proper motion (declination) [mas/yr] -21.70946505 (0.4) -20.87538423 (1) -20.875 (1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.80 (0.3)
V magnitude
R magnitude 19.10 (0.3)
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.81 (0.04) 19.81 (0.04) 21.86 (0.3)
g magnitude 19.84 (0.02) 19.84 (0.02) 21.24 (0.1)
r magnitude 20.12 (0.02) 20.12 (0.02) 21.30 (0.1)
i magnitude 20.33 (0.04) 20.33 (0.04) 21.51 (0.1)
z magnitude 20.68 (0.2) 20.68 (0.2) 22.11 (0.8)
G magnitude 19.96 (0.07) 19.99 19.99 (0.009)
BP magnitude 19.92 (0.07) 19.94
RP magnitude 20.14 (0.1) 20.23
Pan g magnitude 19.89 (0.01)
Pan r magnitude 20.11 (0.02)
Pan i magnitude 20.36 (0.02)
Pan z magnitude 20.53 (0.06)
Pan y magnitude 20.25 (0.2)
E(B-V) 0.022

* 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.