SDSS J083048.86+214033.4

All names: Gaia DR2 665534800610544640, Gaia DR3 665534800610544640, Gaia EDR3 665534800610544640, SDSS J083048.86+214033.40, GALEX J083048.9+214033, SDSS J083048.86+214033.4

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 30 48.87 (0.6) 08 30 48.86 08 30 48.87 (0.8) 08 30 48.86 (0.6) 08 30 48.86
Declination 21 40 33.32 (0.4) 21 40 33.35 21 40 33.32 (0.4) 21 40 33.43 (0.4) 21 40 33.39
Spectral type DBA: DBA DBA: DB
Effective temperature [K] 15968.0 15151.0 13004.0 15589.0 (752)
log(g) [cgs] 9.05 7.17 6.99 8.81 (0.5)
Mass [M] 1.209 0.26 0.216
log(Luminosity) [L]
Cooling age [Gyr]
log(H/He) <-5.745
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] 0.63 (0.9) 0.97 (1) 0.63 (0.9)
Distance [pc] 1592.35 (2188) 1031.94 (1092) 1592.36 (2188)
Composition He
Proper motion (right ascension) [mas/yr] 5.36614134 (0.7) 7.346426787 (2) 5.366 (0.7)
Proper motion (declination) [mas/yr] -6.743479287 (0.5) -7.555130395 (1) -6.743 (0.5)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 20.08 (0.04) 20.07 (0.05) 20.07 (0.05)
g magnitude 20.12 (0.02) 20.14 (0.02) 20.14 (0.02)
r magnitude 20.36 (0.03) 20.37 (0.03) 20.37 (0.03)
i magnitude 20.61 (0.04) 20.61 (0.04) 20.61 (0.04)
z magnitude 20.43 (0.1) 20.43 (0.1) 20.43 (0.1)
G magnitude 20.22 (0.06) 20.29 20.22 (0.006)
BP magnitude 20.11 (0.06) 20.17
RP magnitude 20.09 (0.09) 20.11
Pan g magnitude 20.14 (0.02)
Pan r magnitude 20.36 (0.02)
Pan i magnitude 20.59 (0.02)
Pan z magnitude 20.77 (0.07)
Pan y magnitude 20.47 (0.2)
E(B-V) 0.032

* 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.