SDSS J210328.68-004640.6

All names: Gaia EDR3 6917229719960613888, SDSS J210328.68-004640.6, SDSS J210328.68-004640.60, Gaia DR2 6917229719960613888, Gaia DR3 6917229719960613888

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Simbad Kleinman et al. 2013
Right ascension 21 03 28.68 (0.3) 21 03 28.68 21 03 28.68 (0.4) 21 03 28.68 (0.3) 21 03 28.68
Declination -00 46 40.55 (0.3) -00 46 40.55 -00 46 40.55 (0.4) -00 46 40.59 (0.3) -00 46 40.57
Spectral type DB DB DB
Effective temperature [K] 20971.0 25745.0 13889.0 19584.0 (356) 22076.0 (909)
log(g) [cgs] 8.32 8.06 7.31 8.09 (0.09) 8.20 (0.08)
Mass [M] 0.794 0.645 0.29 0.716 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 0.1232
log(H/He) -4.461 <-3.96
log(C/He)
log(Ca/He) <-4.5
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] 1.06 (0.4) 1.70 (0.5) 1.06 (0.4)
Distance [pc] 944.24 (359) 588.93 (177) 491.00 944.20 (359)
Composition He
Proper motion (right ascension) [mas/yr] -2.767165008 (0.4) -3.849067741 (1) -2.767 (0.4)
Proper motion (declination) [mas/yr] 2.458503958 (0.3) 1.678666325 (0.8) 2.459 (0.3)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.24 (0.03) 19.26 (0.03) 19.26 (0.03)
g magnitude 19.35 (0.01) 19.39 (0.02) 19.39 (0.02)
r magnitude 19.70 (0.02) 19.71 (0.02) 19.71 (0.02)
i magnitude 19.97 (0.03) 19.97 (0.02) 19.97 (0.02)
z magnitude 19.97 (0.1) 19.97 (0.1) 19.97 (0.1)
G magnitude 19.50 (0.03) 19.58 19.50 (0.005)
BP magnitude 19.46 (0.03)
RP magnitude 19.59 (0.09)
Pan g magnitude 19.41 (0.01)
Pan r magnitude 19.68 (0.009)
Pan i magnitude 19.99 (0.02)
Pan z magnitude 20.17 (0.04)
Pan y magnitude
E(B-V) 0.044

* 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.