SDSS J080228.14+105450.1

All names: Gaia DR2 3147798058273223936, Gaia EDR3 3147798058273223936, Gaia DR3 3147798058273223936, GALEX J080228.1+105450, SDSS J080228.14+105450.1

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 08 02 28.14 (0.1) 08 02 28.14 08 02 28.14 (0.1) 08 02 28.14 08 02 28.14 (0.1) 08 02 28.14
Declination 10 54 49.88 (0.09) 10 54 50.16 10 54 49.89 (0.08) 10 54 49.88 10 54 50.24 (0.09) 10 54 50.12
Spectral type DBAHM: DB DBAH+M DBAHM: DB
Effective temperature [K] 16097.0 17113.0 (72) 16058.0 (1053) 17790.0 (144)
log(g) [cgs] 7.85 7.95 (0.05) 7.83 (0.09) 8.17 (0.05)
Mass [M] 0.511 0.5 (0.07)
log(Luminosity) [L]
Cooling age [Gyr] 0.1232
log(H/He) -4.19 (0.3)
log(C/He)
log(Ca/He) <-6.06
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] 3.61 (0.1) 3.64 (0.2) 3.61 3.61 (0.1)
Distance [pc] 276.66 (11) 274.47 (12) 271.00 276.66 276.66 (11)
Composition He
Proper motion (right ascension) [mas/yr] -0.653882079 (0.2) -0.769171887 (0.3) -0.654 (0.2)
Proper motion (declination) [mas/yr] -22.69474643 (0.1) -22.93536443 (0.2) -22.695 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.77 (0.01) 17.77 (0.01) 17.81 (0.02)
g magnitude 17.91 (0.006) 17.91 (0.006) 17.93 (0.01)
r magnitude 18.24 (0.007) 18.24 (0.007) 18.24 (0.01)
i magnitude 18.48 (0.01) 18.48 (0.01) 18.51 (0.01)
z magnitude 18.74 (0.04) 18.73 (0.04) 18.79 (0.04)
G magnitude 18.08 (0.01) 18.11 18.08 18.08 (0.003)
BP magnitude 18.03 (0.01) 17.97
RP magnitude 18.24 (0.02) 18.22
Pan g magnitude 17.97 (0.009)
Pan r magnitude 18.24 (0.005)
Pan i magnitude 18.52 (0.004)
Pan z magnitude 18.75 (0.007)
Pan y magnitude 18.92 (0.02)
E(B-V) 0.013

* 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.