SDSS J162844.43+191059.1

All names: Gaia DR2 4467559251120476032, GALEX J162844.4+191059, Gaia EDR3 4467559251120476032, SDSS J162844.43+191059.2, SDSS J162844.43+191059.15, SDSS J162844.43+191059.1, Gaia DR3 4467559251120476032

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Kepler et al. 2015 Vincent et al. 2024 Simbad Vincent et al. 2023
Right ascension 16 28 44.43 (0.1) 16 28 44.43 16 28 44.43 (0.1) 16 28 44.43 16 28 44.43 (0.1)
Declination 19 10 59.20 (0.1) 19 10 59.14 19 10 59.20 (0.1) 19 10 59.20 19 10 59.12 (0.1)
Spectral type DB DB DB DB DB
Effective temperature [K] 22789.0 21958.0 16700.0 20483.0 (224) 19973.0 (100) 18759.0 (1398)
log(g) [cgs] 8.00 7.98 7.73 7.91 (0.04) 7.90 (0.003) 7.88 (0.1)
Mass [M] 0.604 0.592 0.451 0.545 (0.01) 0.531 (0.07)
log(Luminosity) [L]
Cooling age [Gyr] 0.0891
log(H/He) -3.944 <-4.08
log(C/He)
log(Ca/He) <-4.89
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] 2.71 (0.2) 2.62 (0.2) 2.71 2.71 (0.2)
Distance [pc] 369.31 (21) 381.13 (28) 387.00 369.31 369.30 (21)
Composition He
Proper motion (right ascension) [mas/yr] 3.790587324 (0.1) 4.134747258 (0.3) 3.791 (0.1)
Proper motion (declination) [mas/yr] 5.032006268 (0.1) 4.639100208 (0.3) 5.032 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.28 (0.01) 18.28 (0.01) 18.27 (0.01)
g magnitude 18.39 (0.007) 18.39 (0.01) 18.39 (0.007)
r magnitude 18.70 (0.009) 18.70 (0.01) 18.70 (0.009)
i magnitude 18.98 (0.01) 18.98 (0.01) 18.98 (0.01)
z magnitude 19.34 (0.06) 19.34 (0.06) 19.34 (0.06)
G magnitude 18.53 (0.01) 18.57 18.53 18.53 (0.003)
BP magnitude 18.46 (0.01) 18.41
RP magnitude 18.68 (0.02) 18.65
Pan g magnitude 18.40 (0.007)
Pan r magnitude 18.70 (0.007)
Pan i magnitude 18.99 (0.008)
Pan z magnitude 19.22 (0.01)
Pan y magnitude 19.24 (0.06)
E(B-V) 0.049

* 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.