SDSS J074419.81+302203.4

All names: SDSS J074419.82+302203.2, SDSS J074419.82+302203.3, Gaia DR3 879166817510277632, GALEX J074419.8+302203, Gaia EDR3 879166817510277632, SDSS J074419.82+302203.40, Gaia DR2 879166817510277632, SDSS J074419.81+302203.4, WD 0741+304, SDSS J074419.82+302203.4

Parameter Unit Gaia EDR3 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) 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 07 44 19.83 (0.4) 07 44 19.83 07 44 19.83 (0.5) 07 44 19.82 (0.4) 07 44 19.82 07 44 20.09 07 44 19.82
Declination 30 22 02.92 (0.3) 30 22 03.30 30 22 02.93 (0.5) 30 22 03.34 (0.3) 30 22 03.45 30 21 57.60 30 22 03.41
Spectral type DBA: DAB DBA: DBA: DBA: DB:
Effective temperature [K] 14607.0 11745.0 14885.0 (242) 13953.0 (297)
log(g) [cgs] 8.06 6.89 8.27 (0.2) 8.10 (0.2)
Mass [M] 0.624 0.192
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He) -5.27
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] 1.48 (0.5) 1.60 (0.8) 1.48 (0.5)
Distance [pc] 675.09 (206) 626.15 (294) 675.08 (206)
Composition He
Proper motion (right ascension) [mas/yr] 8.465333225 (0.5) 8.478292896 (0.9) 8.465 (0.5) 7.3
Proper motion (declination) [mas/yr] -26.14870679 (0.4) -25.71255243 (0.8) -26.149 (0.4) -19.2
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.23 (0.02) 19.23 (0.03) 19.34 (0.03) 19.34 19.35 (0.03)
g magnitude 19.16 (0.01) 19.16 (0.01) 19.25 (0.02) 19.24 19.25 (0.02)
r magnitude 19.49 (0.02) 19.49 (0.02) 19.56 (0.02) 19.55 19.56 (0.02)
i magnitude 19.54 (0.02) 19.54 (0.02) 19.71 (0.03) 19.70 19.71 (0.03)
z magnitude 19.71 (0.07) 19.71 (0.07) 19.87 (0.07) 19.86 19.86 (0.07)
G magnitude 19.42 (0.06) 19.44 19.42 (0.006)
BP magnitude 19.39 (0.06) 19.38
RP magnitude 19.38 (0.05) 19.29
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.039

* 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.