SDSS J081324.79+192414.4

All names: SDSS J081324.79+192414.4, Gaia EDR3 669531525377521536, Gaia DR3 669531525377521536, Gaia DR2 669531525377521536, SDSS J081324.79+192414.40, GALEX J081324.8+192414

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 08 13 24.79 (1) 08 13 24.78 08 13 24.79 (2) 08 13 24.79 (1) 08 13 24.79
Declination 19 24 14.48 (1) 19 24 14.43 19 24 14.48 (1) 19 24 14.43 (1) 19 24 14.40
Spectral type DB DB DB DB
Effective temperature [K] 22590.0 13920.0 13505.0 24011.0 (2459)
log(g) [cgs] 7.84 9.10 9.08 8.04 (0.3)
Mass [M] 0.52 1.229 1.223 0.625 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 1.3950
log(H/He) <-4.289
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] 2.79 (2) 3.66 (1) 2.79 (2)
Distance [pc] 358.60 (216) 273.40 (103) 358.60 (216)
Composition He
Proper motion (right ascension) [mas/yr] -4.923519994 (2) -0.624298917 (3) -4.924 (2)
Proper motion (declination) [mas/yr] 2.795198846 (2) 3.136643665 (2) 2.795 (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 20.52 (0.06) 20.26 (0.06) 20.26 (0.06)
g magnitude 20.48 (0.03) 20.40 (0.03) 20.40 (0.03)
r magnitude 20.67 (0.04) 20.81 (0.04) 20.81 (0.04)
i magnitude 21.10 (0.07) 21.07 (0.07) 21.07 (0.07)
z magnitude 21.28 (0.3) 20.63 (0.2) 20.63 (0.2)
G magnitude 20.61 (0.1) 20.70 20.61 (0.01)
BP magnitude 20.41 (0.1) 20.23
RP magnitude 20.16 (0.2) 20.47
Pan g magnitude 20.50 (0.03)
Pan r magnitude 20.76 (0.02)
Pan i magnitude 20.98 (0.05)
Pan z magnitude 21.09 (0.1)
Pan y magnitude
E(B-V) 0.020

* 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.