SDSS J081345.41+365140.5

All names: SDSS J081345.42+365140.5, Gaia DR2 907792538315677312, SDSS J081345.43+365140.5, SDSS J081345.40+365140.4, SDSS J081345.41+365140.5, SDSS J081345.43+365140.50, Gaia EDR3 907792538315677312, Gaia DR3 907792538315677312, GALEX J081345.4+365140, WD 0810+370

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 Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 08 13 45.40 (0.2) 08 13 45.42 08 13 45.40 (0.3) 08 13 45.43 (0.2) 08 13 45.43 08 13 44.86 08 13 45.43
Declination 36 51 40.47 (0.2) 36 51 40.53 36 51 40.48 (0.2) 36 51 40.56 (0.2) 36 51 40.55 36 51 35.64 36 51 40.55
Spectral type DB DB DB DB DB DB
Effective temperature [K] 26991.0 26139.0 17664.0 27065.0 (437) 23269.0 (1171) 24815.0 (525)
log(g) [cgs] 7.69 7.72 7.45 7.61 (0.06) 7.47 (0.2) 7.79 (0.06)
Mass [M] 0.458 0.472 0.346 0.503 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 0.0591
log(H/He) <-4.281 <-2.93
log(C/He)
log(Ca/He) <-4.0
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] 2.24 (0.3) 1.66 (0.4) 2.24 (0.3)
Distance [pc] 446.55 (54) 603.85 (157) 692.00 446.55 (54)
Composition He
Proper motion (right ascension) [mas/yr] -25.44566733 (0.3) -25.8312709 (0.6) -25.446 (0.3) -24.2
Proper motion (declination) [mas/yr] -5.481545894 (0.2) -5.373095025 (0.4) -5.482 (0.2) -7.5
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.75 (0.02) 18.75 (0.02) 18.76 (0.02) 18.75 18.76 (0.02)
g magnitude 18.80 (0.008) 18.80 (0.008) 18.82 (0.02) 18.81 18.81 (0.02)
r magnitude 19.17 (0.01) 19.17 (0.01) 19.19 (0.02) 19.19 19.18 (0.02)
i magnitude 19.50 (0.02) 19.50 (0.02) 19.52 (0.02) 19.52 19.51 (0.02)
z magnitude 19.85 (0.08) 19.85 (0.08) 19.84 (0.09) 19.84 19.82 (0.09)
G magnitude 19.02 (0.02) 19.06 19.02 (0.004)
BP magnitude 18.95 (0.02) 18.82
RP magnitude 19.10 (0.06) 19.11
Pan g magnitude 18.87 (0.006)
Pan r magnitude 19.19 (0.005)
Pan i magnitude 19.49 (0.007)
Pan z magnitude 19.73 (0.02)
Pan y magnitude 19.47 (0.07)
E(B-V) 0.033

* Constant surface field

Special notes:

Spectra

Controls

Normalize at:
Normalize by mean flux

Range:

x: to
y: to

Spectra available:

Spectra without link are available upon request

Absorption lines

Photometric filters

BVRI
ugriz

Photometric fit





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.