GALEX 2680215732002752324

All names: Gaia DR2 1306891203086722048, SDSS J165555.79+264549.0, USNO-A2.0 1125-07895386, SDSS J165555.80+264549.00, Gaia DR3 1306891203086722048, Gaia EDR3 1306891203086722048, GALEX 2680215732002752324, SDSS J165555.80+264549.0

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 16 55 55.77 (0.1) 16 55 55.80 16 55 55.77 (0.2) 16 55 55.77 16 55 55.80 (0.2) 16 55 55.80
Declination 26 45 49.29 (0.2) 26 45 49.03 26 45 49.28 (0.2) 26 45 49.29 26 45 48.93 (0.2) 26 45 48.99
Spectral type DB DB DB DB DB
Effective temperature [K] 15270.0 13865.0 17465.0 (2130) 15584.0 (231)
log(g) [cgs] 7.33 7.94 8.09 (0.2) 7.70 (0.2)
Mass [M] 0.3 0.553 0.647 (0.1) 0.439 (0.09)
log(Luminosity) [L]
Cooling age [Gyr] 0.2304
log(H/He) <-6.056
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] 2.38 (0.2) 2.62 (0.3) 2.38 2.62 (0.3)
Distance [pc] 419.34 (36) 381.82 (40) 419.34 381.83 (40)
Composition He
Proper motion (right ascension) [mas/yr] -27.68085164 (0.2) -27.31307445 (0.5) -27.313 (0.5)
Proper motion (declination) [mas/yr] 21.58464227 (0.2) 22.45436999 (0.6) 22.454 (0.6)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.50 (0.3)
V magnitude
R magnitude 19.20 (0.3)
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.10 (0.02) 19.10 (0.02) 19.13 (0.04)
g magnitude 19.16 (0.01) 19.16 (0.01) 19.16 (0.02)
r magnitude 19.41 (0.01) 19.41 (0.01) 19.42 (0.02)
i magnitude 19.64 (0.02) 19.64 (0.02) 19.71 (0.03)
z magnitude 19.89 (0.08) 19.89 (0.07) 20.01 (0.1)
G magnitude 19.28 (0.02) 19.32 19.28 19.32 (0.003)
BP magnitude 19.25 (0.02) 19.18
RP magnitude 19.51 (0.04) 19.25
Pan g magnitude 19.18 (0.01)
Pan r magnitude 19.43 (0.004)
Pan i magnitude 19.66 (0.02)
Pan z magnitude 19.84 (0.04)
Pan y magnitude 20.07 (0.08)
E(B-V) 0.028

* 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.