SDSS J083409.05+410700.9

All names: USNO-A2.0 1275-07308348, SDSS J083409.05+410700.5, SDSS J083409.05+410700.9, SDSS J083409.05+410700.90, LAMOST J083409.04+410700.5, GALEX J083409.1+410701, Gaia EDR3 914845213918007936, Gaia DR2 914845213918007936, Gaia DR3 914845213918007936, LAMOST J083409.05+410700.9, WD 0830+412

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 Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 08 34 09.04 (0.1) 08 34 09.06 08 34 09.04 (0.1) 08 34 09.04 08 34 09.06 (0.1) 08 34 09.06 08 34 08.76 08 34 09.05
Declination 41 07 00.46 (0.07) 41 07 00.91 41 07 00.48 (0.09) 41 07 00.46 41 07 00.99 (0.07) 41 07 00.91 41 06 53.28 41 07 00.94
Spectral type DBAH: DB DBAH DBA DBA DBAH: DB
Effective temperature [K] 12969.0 12968.0 12699.0 12144.0 (75) 12219.0 (302) 14031.0 (90) 13040.0 (165)
log(g) [cgs] 8.34 8.31 8.29 8.00 (0) 8.17 (0.04) 8.99 (0.01) 8.69 (0.1)
Mass [M] 0.801 0.782 0.766 0.686 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 0.5144
log(H/He) -5.037 -5.06 (0.1)
log(C/He)
log(Ca/He) <-10.09
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] 6.59 (0.1) 6.91 (0.2) 6.59 6.59 (0.1)
Distance [pc] 151.68 (3) 144.71 (4) 161.00 151.68 151.68 (3)
Composition He
Proper motion (right ascension) [mas/yr] -17.14541709 (0.1) -16.99399103 (0.3) -17.145 (0.1) -18.2
Proper motion (declination) [mas/yr] -33.08615796 (0.1) -33.43609922 (0.2) -33.086 (0.1) -37.5
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.30 (0.3)
V magnitude
R magnitude 17.90 (0.3)
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.78 (0.01) 17.78 (0.01) 17.79 (0.01) 17.78 17.78 (0.02)
g magnitude 17.78 (0.005) 17.78 (0.005) 17.78 (0.04) 17.78 17.78 (0.04)
r magnitude 18.00 (0.007) 18.00 (0.007) 18.02 (0.02) 18.02 18.01 (0.02)
i magnitude 18.21 (0.008) 18.21 (0.008) 18.25 (0.02) 18.25 18.24 (0.02)
z magnitude 18.46 (0.03) 18.46 (0.03) 18.49 (0.04) 18.48 18.47 (0.04)
G magnitude 17.88 (0.008) 17.91 17.88 17.88 (0.003)
BP magnitude 17.89 (0.008) 17.86
RP magnitude 17.92 (0.02) 17.89
Pan g magnitude 17.83 (0.005)
Pan r magnitude 18.02 (0.005)
Pan i magnitude 18.22 (0.003)
Pan z magnitude 18.45 (0.006)
Pan y magnitude 18.59 (0.01)
E(B-V) 0.007

* 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.