SDSS J045248.39-001034.1

All names: GALEX J045248.3-001033, SDSS J045248.38-001034.1, Gaia EDR3 3226823016978597888, Gaia DR2 3226823016978597888, SDSS J045248.39-001034.13, Gaia DR3 3226823016978597888, SDSS J045248.38-001034.0, SDSS J045248.39-001034.1

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Kepler et al. 2015 Simbad Vincent et al. 2023
Right ascension 04 52 48.38 (0.7) 04 52 48.39 04 52 48.38 (0.9) 04 52 48.39 (0.7)
Declination -00 10 34.22 (0.4) -00 10 34.09 -00 10 34.22 (0.6) -00 10 34.09 (0.4)
Spectral type DB DB DB DB+MS
Effective temperature [K] 29800.0 14761.0 16829.0 18866.0 (561)
log(g) [cgs] 8.56 8.96 9.15 8.09 (0.2)
Mass [M] 0.957 1.169 1.249 0.64 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.9535
log(H/He) <-3.458
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] -0.08 (0.8) 3.37 (1) 3.37 (1)
Distance [pc] 296.66 (115) 296.67 (115)
Composition He
Proper motion (right ascension) [mas/yr] -12.60715278 (0.9) -13.50027417 (3) -12.607 (0.9)
Proper motion (declination) [mas/yr] -7.941467565 (0.9) -4.262649333 (1) -7.941 (0.9)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.28 (0.04) 20.28 (0.04) 20.29 (0.04)
g magnitude 20.33 (0.02) 20.33 (0.02) 20.32 (0.02)
r magnitude 20.60 (0.03) 20.60 (0.03) 20.60 (0.03)
i magnitude 20.87 (0.05) 20.87 (0.05) 20.88 (0.05)
z magnitude 21.39 (0.3) 21.39 (0.3) 21.39 (0.3)
G magnitude 20.46 (0.08) 20.54 20.46 (0.009)
BP magnitude 20.37 (0.08) 20.21
RP magnitude 20.45 (0.1) 20.59
Pan g magnitude 20.40 (0.02)
Pan r magnitude 20.59 (0.03)
Pan i magnitude 20.81 (0.03)
Pan z magnitude 21.11 (0.03)
Pan y magnitude
E(B-V) 0.023

* 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.