SDSS J162854.27+230124.1

All names: GALEX J162854.2+230123, SDSS J162854.27+230124.10, Gaia DR3 1298854842536301184, Gaia DR2 1298854838238550912, SDSS J162854.25+230123.9, Gaia EDR3 1298854842536301184, SDSS J162854.27+230124.1

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 16 28 54.23 (0.09) 16 28 54.27 16 28 54.23 (0.1) 16 28 54.23 16 28 54.28 (0.09) 16 28 54.27
Declination 23 01 23.73 (0.1) 23 01 24.14 23 01 23.74 (0.2) 23 01 23.73 23 01 24.20 (0.1) 23 01 24.13
Spectral type DB:DC DC DC DB:DC DB
Effective temperature [K] 10995.0 11002.0 10685.0 9967.0 (261) 11346.0 (462)
log(g) [cgs] 7.69 8.03 8.01 7.83 (0.06) 8.71 (0.4)
Mass [M] 0.421 0.597 0.588 0.486 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.5315
log(H/He) <-6.119
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] 4.82 (0.2) 4.75 (0.2) 4.82 4.82 (0.2)
Distance [pc] 207.39 (7) 210.49 (1e+01) 207.39 207.39 (7)
Composition He
Proper motion (right ascension) [mas/yr] -44.4730952 (0.1) -45.1568016 (0.3) -44.473 (0.1)
Proper motion (declination) [mas/yr] -29.52220638 (0.2) -29.25829636 (0.4) -29.522 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.83 (0.02) 18.83 (0.02) 18.82 (0.02)
g magnitude 18.68 (0.008) 18.68 (0.008) 18.69 (0.01)
r magnitude 18.78 (0.009) 18.78 (0.009) 18.80 (0.02)
i magnitude 18.96 (0.01) 18.95 (0.01) 18.94 (0.02)
z magnitude 19.22 (0.05) 19.21 (0.05) 19.23 (0.05)
G magnitude 18.72 (0.01) 18.75 18.72 18.72 (0.003)
BP magnitude 18.76 (0.01) 18.67
RP magnitude 18.65 (0.02) 18.64
Pan g magnitude 18.70 (0.008)
Pan r magnitude 18.82 (0.006)
Pan i magnitude 18.98 (0.008)
Pan z magnitude 19.18 (0.01)
Pan y magnitude 19.21 (0.03)
E(B-V) 0.037

* 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.