SDSS J165006.93+205049.6

All names: SDSS J165006.93+205049.6, Gaia DR2 4564787586895666816, Gaia EDR3 4564787586895666816, GALEX J165006.9+205049, Gaia DR3 4564787586895666816, SDSS J165006.92+205049.6, SDSS J165006.93+205049.60

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 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 16 50 06.92 (0.3) 16 50 06.93 16 50 06.92 (0.4) 16 50 06.93 (0.3) 16 50 06.93
Declination 20 50 49.42 (0.3) 20 50 49.65 20 50 49.43 (0.4) 20 50 49.68 (0.3) 20 50 49.64
Spectral type DB DB DB DB
Effective temperature [K] 17557.0 21694.0 15717.0 20835.0 (2782)
log(g) [cgs] 7.95 8.14 7.81 8.38 (0.2)
Mass [M] 0.565 0.683 0.487 0.827 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.1251
log(H/He) -5.033
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] 1.12 (0.4) 1.53 (0.5) 1.12 (0.4)
Distance [pc] 895.59 (321) 653.45 (226) 895.58 (321)
Composition He
Proper motion (right ascension) [mas/yr] -12.08498899 (0.3) -12.64672468 (0.7) -12.085 (0.3)
Proper motion (declination) [mas/yr] -16.19737266 (0.4) -15.68932749 (0.8) -16.197 (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 19.69 (0.04) 19.69 (0.04) 19.69 (0.04)
g magnitude 19.82 (0.02) 19.82 (0.02) 19.83 (0.03)
r magnitude 20.13 (0.02) 20.13 (0.02) 20.14 (0.03)
i magnitude 20.40 (0.04) 20.40 (0.04) 20.39 (0.04)
z magnitude 20.41 (0.2) 20.41 (0.2) 20.39 (0.1)
G magnitude 19.97 (0.04) 20.03 19.97 (0.005)
BP magnitude 19.94 (0.04) 19.84
RP magnitude 20.11 (0.08) 20.18
Pan g magnitude 19.83 (0.01)
Pan r magnitude 20.14 (0.02)
Pan i magnitude 20.40 (0.02)
Pan z magnitude 20.53 (0.07)
Pan y magnitude 20.08 (0.2)
E(B-V) 0.045

* 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.