SDSS J074713.07+184719.8

All names: SDSS J074713.07+184719.6, Gaia EDR3 671656572116256000, Gaia DR2 671656572116256000, SDSS J074713.07+184719.7, SDSS J074713.07+184719.8, Gaia DR3 671656572116256000, SDSS J074713.07+184719.80, GALEX J074713.0+184721

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 07 47 13.08 (0.4) 07 47 13.07 07 47 13.08 (0.6) 07 47 13.07 (0.4) 07 47 13.07
Declination 18 47 19.44 (0.3) 18 47 19.61 18 47 19.45 (0.5) 18 47 19.85 (0.3) 18 47 19.78
Spectral type DB DB DB DB
Effective temperature [K] 15621.0 15414.0 15039.0 15762.0 (100) 15780.0 (331)
log(g) [cgs] 8.00 8.68 8.66 8.00 (0) 8.04 (0.2)
Mass [M] 0.593 1.018 1.006
log(Luminosity) [L]
Cooling age [Gyr] 0.5812
log(H/He) -4.694 -4.56 (0.6)
log(C/He)
log(Ca/He) <-6.59
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] 2.19 (0.4) 3.41 (0.9) 2.19 (0.4)
Distance [pc] 457.64 (82) 292.95 (74) 486.00 457.64 (82)
Composition He
Proper motion (right ascension) [mas/yr] 14.83340733 (0.5) 13.71167479 (1) 14.833 (0.5)
Proper motion (declination) [mas/yr] -25.76624894 (0.3) -24.21596787 (0.8) -25.766 (0.3)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.47 (0.03) 19.47 (0.03) 19.47 (0.03)
g magnitude 19.53 (0.01) 19.53 (0.01) 19.56 (0.02)
r magnitude 19.79 (0.02) 19.79 (0.02) 19.82 (0.02)
i magnitude 20.07 (0.03) 20.07 (0.03) 20.04 (0.03)
z magnitude 20.40 (0.1) 20.40 (0.1) 20.49 (0.2)
G magnitude 19.65 (0.06) 19.73 19.65 (0.006)
BP magnitude 19.56 (0.06) 19.37
RP magnitude 19.52 (0.1) 19.84
Pan g magnitude 19.57 (0.01)
Pan r magnitude 19.81 (0.008)
Pan i magnitude 20.12 (0.02)
Pan z magnitude 20.27 (0.05)
Pan y magnitude 20.23 (0.1)
E(B-V) 0.028

* 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.