SDSS J160051.34+402057.9

All names: WD 1559+404, SDSS J160051.35+402058.0, GALEX J160051.3+402057, SDSS J160051.37+402057.7, Gaia DR2 1382809629125725312, Gaia DR3 1382809629125725312, Gaia EDR3 1382809629125725312, SDSS J160051.35+402058.00, SDSS J160051.34+402057.9, SDSS J160051.34+402058.0

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 Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 16 00 51.36 (0.2) 16 00 51.34 16 00 51.36 (0.2) 16 00 51.34 (0.2) 16 00 51.35 16 00 51.50 16 00 51.35
Declination 40 20 57.62 (0.2) 40 20 58.01 40 20 57.64 (0.2) 40 20 58.09 (0.2) 40 20 57.99 40 20 57.12 40 20 57.96
Spectral type DB: DB DB: DB: DB DB
Effective temperature [K] 13430.0 13485.0 11973.0 14579.0 (308) 13725.0 (336)
log(g) [cgs] 8.11 8.39 8.24 8.74 (0.2) 8.54 (0.2)
Mass [M] 0.65 0.836 0.734 0.924 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.5611
log(H/He) -5.798
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] 3.33 (0.2) 3.69 (0.3) 3.33 (0.2)
Distance [pc] 300.63 (19) 271.03 (20) 300.63 (19)
Composition He
Proper motion (right ascension) [mas/yr] 16.81336386 (0.3) 16.97018331 (0.5) 16.813 (0.3) 30.1
Proper motion (declination) [mas/yr] -28.85078401 (0.3) -28.55255753 (0.6) -28.851 (0.3) -30.1
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.17 (0.02) 19.17 (0.02) 19.25 (0.03) 19.24 19.25 (0.03)
g magnitude 19.19 (0.01) 19.19 (0.01) 19.24 (0.02) 19.24 19.24 (0.02)
r magnitude 19.46 (0.01) 19.46 (0.01) 19.49 (0.03) 19.49 19.49 (0.03)
i magnitude 19.68 (0.02) 19.68 (0.02) 19.71 (0.03) 19.72 19.71 (0.03)
z magnitude 19.89 (0.08) 19.89 (0.08) 19.92 (0.1) 19.92 19.92 (0.1)
G magnitude 19.30 (0.03) 19.35 19.30 (0.004)
BP magnitude 19.33 (0.03) 19.26
RP magnitude 19.35 (0.05) 19.32
Pan g magnitude 19.26 (0.01)
Pan r magnitude 19.44 (0.008)
Pan i magnitude 19.66 (0.009)
Pan z magnitude 19.84 (0.02)
Pan y magnitude 19.82 (0.07)
E(B-V) 0.019

* 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.