WD 1623+001

All names: SDSS J162545.54+000053.70, WD 1623+001, Gaia DR3 4407572748567478784, GALEX J162545.5+000053, Gaia EDR3 4407572748567478784, SDSS J162545.53+000053.7, SDSS J162545.54+000053.7, Gaia DR2 4407572748567478784

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 25 45.53 (0.5) 16 25 45.54 16 25 45.53 (0.8) 16 25 45.54 (0.5) 16 25 45.54 16 25 44.71 16 25 45.54
Declination 00 00 53.78 (0.3) 00 00 53.74 00 00 53.77 (0.5) 00 00 53.72 (0.3) 00 00 53.73 00 00 50.40 00 00 53.66
Spectral type DB DB2 DB DB2.5 DB DB
Effective temperature [K] 21876.0 15498.0 13266.0 19804.0 (809) 19711.0 (1025)
log(g) [cgs] 8.14 8.00 7.83 7.95 (0.2) 7.87 (0.2)
Mass [M] 0.685 0.592 0.491 0.525 (0.08)
log(Luminosity) [L]
Cooling age [Gyr] 0.2249
log(H/He) <-4.49
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] 1.03 (0.7) 1.67 (0.8) 1.03 (0.7)
Distance [pc] 967.24 (644) 597.37 (282) 967.21 (644)
Composition He
Proper motion (right ascension) [mas/yr] -9.190940004 (0.8) -11.55079026 (2) -9.191 (0.8) -4.5
Proper motion (declination) [mas/yr] 3.666543008 (0.6) 3.18815906 (0.9) 3.667 (0.6) 5.9
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.18 (0.04) 20.19 (0.04) 20.19 (0.04) 20.20 20.18 (0.04)
g magnitude 20.20 (0.02) 20.22 (0.02) 20.22 (0.02) 20.22 20.21 (0.02)
r magnitude 20.41 (0.03) 20.40 (0.03) 20.40 (0.02) 20.39 20.39 (0.02)
i magnitude 20.64 (0.04) 20.60 (0.04) 20.59 (0.04) 20.59 20.60 (0.04)
z magnitude 21.07 (0.2) 21.05 (0.3) 20.99 (0.3) 20.96 21.02 (0.2)
G magnitude 20.30 (0.06) 20.37 20.30 (0.006)
BP magnitude 20.24 (0.06) 20.33
RP magnitude 20.20 (0.08) 20.52
Pan g magnitude 20.23 (0.02)
Pan r magnitude 20.44 (0.01)
Pan i magnitude 20.62 (0.03)
Pan z magnitude 20.97 (0.09)
Pan y magnitude
E(B-V) 0.091

* 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.