WD 0901+530

All names: GALEX J090456.0+525029, Gaia DR2 1017448031249546624, SDSS J090456.13+525029.90, Gaia DR3 1017448031249546624, USNO-B1.0 1428-00240460, SDSS J090456.11+525029.8, SDSS J090456.12+525029.8, WD 0901+530, Gaia EDR3 1017448031249546624, SDSS J090456.10+525029.7, SDSS J090456.13+525029.9

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Bedard et al. 2020 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Nitta et al. 2009 Eisenstein et al. 2006 Simbad White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 04 56.10 (0.2) 09 04 56.12 09 04 56.10 (0.2) 09 04 56.12 09 04 56.13 (0.2) 09 04 55.44 09 04 56.13
Declination 52 50 29.78 (0.2) 52 50 29.83 52 50 29.79 (0.3) 52 50 29.82 52 50 29.84 (0.2) 52 50 25.80 52 50 29.88
Spectral type DBA DB DB DB DB1.4 DB DB
Effective temperature [K] 36558.0 (2439) 38034.0 34293.0 18851.0 38725.0 (794) 37584.0 (953) 37500.0 (600) 38124.0 (894)
log(g) [cgs] 7.77 (0.1) 7.89 6.79 6.55 7.91 (0.09) 7.99 (0.09) 7.99 (0.09) 7.95 (0.09)
Mass [M] 0.51 (0.06) 0.573 0.18 0.197 0.602 (0.04)
log(Luminosity) [L] -0.41 (0.1)
Cooling age [Gyr] 0.0050 (0.001)
log(H/He) <-3.329 <-2.7
log(C/He)
log(Ca/He) <-4.0
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] 1.08 (0.2) 0.67 (0.4) 1.08 (0.2)
Distance [pc] 926.74 (214) 1494.11 (800) 825.00 926.78 (214)
Composition He He
Proper motion (right ascension) [mas/yr] -17.08278815 (0.2) -16.97508204 (0.5) -17.083 (0.2)
Proper motion (declination) [mas/yr] -3.336779611 (0.2) -3.565276919 (0.6) -3.337 (0.2)
Variability NOV
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.66 (0.02) 18.66 (0.02) 18.66 (0.02) 18.66 18.67 (0.02)
g magnitude 18.95 (0.009) 18.95 18.95 (0.02) 18.95 (0.009) 18.97 18.95 (0.02)
r magnitude 19.40 (0.01) 19.41 (0.02) 19.40 (0.01) 19.41 19.40 (0.02)
i magnitude 19.74 (0.02) 19.74 (0.03) 19.73 (0.02) 19.75 19.74 (0.03)
z magnitude 19.97 (0.1) 19.93 (0.09) 19.97 (0.1) 19.95 19.93 (0.09)
G magnitude 19.20 (0.03) 19.23 19.20 (0.004)
BP magnitude 19.08 (0.03) 19.04
RP magnitude 19.53 (0.06) 19.42
Pan g magnitude 19.06 (0.02)
Pan r magnitude 19.44 (0.02)
Pan i magnitude 19.72 (0.01)
Pan z magnitude 19.94 (0.04)
Pan y magnitude 19.94 (0.1)
E(B-V) 0.024

* 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.