SDSS J163329.72+262104.2

All names: WD 1631+264, Gaia DR2 1304054291288081920, Gaia DR3 1304054295585236096, GALEX J163329.7+262104, SDSS J163329.73+262104.20, SDSS J163329.72+262104.2, Gaia EDR3 1304054295585236096, SDSS J163329.73+262104.2, SDSS J163329.73+262104.3

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 33 29.72 (0.2) 16 33 29.73 16 33 29.72 (0.3) 16 33 29.72 (0.2) 16 33 29.73 16 33 28.99 16 33 29.73
Declination 26 21 04.22 (0.3) 26 21 04.31 26 21 04.22 (0.4) 26 21 04.26 (0.3) 26 21 04.25 26 20 58.56 26 21 04.25
Spectral type DB: DB DB: DB: DB DB
Effective temperature [K] 16998.0 18396.0 18079.0 16789.0 (498) 16873.0 (644)
log(g) [cgs] 7.95 7.71 7.74 7.36 (0.3) 7.33 (0.3)
Mass [M] 0.564 0.446 0.46 0.279 (0.08)
log(Luminosity) [L]
Cooling age [Gyr] 0.0661
log(H/He) -4.465
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] 1.56 (0.4) 1.30 (0.5) 1.56 (0.4)
Distance [pc] 639.23 (162) 770.88 (284) 639.22 (162)
Composition He
Proper motion (right ascension) [mas/yr] -0.576294768 (0.3) -0.217318773 (0.7) -0.576 (0.3) -1.8
Proper motion (declination) [mas/yr] -2.709486196 (0.4) -2.138254775 (0.8) -2.709 (0.4) -4.9
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.78 (0.03) 19.78 (0.03) 19.78 (0.04) 19.78 19.77 (0.03)
g magnitude 19.76 (0.01) 19.76 (0.01) 19.80 (0.02) 19.80 19.78 (0.02)
r magnitude 20.10 (0.02) 20.10 (0.02) 20.13 (0.02) 20.13 20.12 (0.02)
i magnitude 20.32 (0.03) 20.32 (0.03) 20.36 (0.03) 20.36 20.35 (0.03)
z magnitude 20.85 (0.2) 20.85 (0.2) 20.94 (0.2) 20.94 20.93 (0.2)
G magnitude 19.94 (0.04) 20.00 19.94 (0.005)
BP magnitude 19.91 (0.04) 19.75
RP magnitude 20.07 (0.07) 20.06
Pan g magnitude 19.84 (0.01)
Pan r magnitude 20.09 (0.01)
Pan i magnitude 20.37 (0.01)
Pan z magnitude 20.48 (0.05)
Pan y magnitude
E(B-V) 0.030

* Constant surface field

Special notes:

Spectra

Controls

Normalize at:
Normalize by mean flux

Range:

x: to
y: to

Spectra available:

Spectra without link are available upon request

Absorption lines

Photometric filters

BVRI
ugriz

Photometric fit





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.