SDSS J074351.14+235322.1

All names: Gaia DR2 867223612972532224, Gaia DR3 867223612972532224, GALEX J074351.1+235323, SDSS J074351.15+235322.1, WD 0740+240, SDSS J074351.14+235322.1, Gaia EDR3 867223612972532224, SDSS J074351.15+235322.10

Parameter Unit Gaia EDR3 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) MWDD HE Gaia DR2 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013
Right ascension 07 43 51.14 (1) 07 43 51.14 07 43 51.14 (2) 07 43 51.14 (1) 07 43 51.15 07 43 50.50 07 43 51.15
Declination 23 53 22.13 (1) 23 53 22.11 23 53 22.14 (2) 23 53 22.18 (1) 23 53 22.10 23 53 17.16 23 53 22.10
Spectral type DB DB DBA: DBA: DB
Effective temperature [K] 17404.0 17912.0 17355.0 (622) 17728.0 (873)
log(g) [cgs] 8.02 9.79 8.25 (0.3) 8.28 (0.3)
Mass [M] 0.604 1.506 0.759 (0.2)
log(Luminosity) [L]
Cooling age [Gyr] 1.6830
log(H/He) -3.852
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] -2.23 (1) -5.45 (3)
Distance [pc]
Composition He
Proper motion (right ascension) [mas/yr] 3.598451714 (1) 3.346788061 (3) 3.598 (1)
Proper motion (declination) [mas/yr] -2.859947307 (1) -5.756674259 (3) -2.86 (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 20.39 (0.05) 20.44 (0.06) 20.47 (0.06) 20.47 20.47 (0.06)
g magnitude 20.50 (0.02) 20.46 (0.03) 20.48 (0.03) 20.48 20.49 (0.03)
r magnitude 20.79 (0.04) 20.80 (0.05) 20.85 (0.05) 20.84 20.85 (0.05)
i magnitude 21.05 (0.05) 20.91 (0.08) 20.94 (0.08) 20.94 20.95 (0.08)
z magnitude 21.52 (0.2) 21.34 (0.3) 21.40 (0.3) 21.40 21.40 (0.3)
G magnitude 20.66 (0.2) 20.77 20.66 (0.01)
BP magnitude 20.37 (0.2) 20.20
RP magnitude 20.50 (0.1) 20.82
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V)

* 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.