SDSS J083449.30+233608.1

All names: SDSS J083449.30+233608.2, Gaia DR3 666365241126813440, SDSS J083449.30+233608.10, SDSS J083449.30+233608.1, Gaia DR2 666365241126813440, GALEX J083449.3+233608, Gaia EDR3 666365241126813440

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 34 49.30 (0.3) 08 34 49.30 08 34 49.30 (0.4) 08 34 49.30 (0.3) 08 34 49.30
Declination 23 36 07.88 (0.2) 23 36 08.10 23 36 07.89 (0.2) 23 36 08.26 (0.2) 23 36 08.11
Spectral type DBAH: DBAH DBAH: DB
Effective temperature [K] 13599.0 14125.0 11479.0 29647.0 (17)
log(g) [cgs] 7.95 8.00 7.68 10.00 (0.001)
Mass [M] 0.561 0.588 0.416
log(Luminosity) [L]
Cooling age [Gyr] 0.2897
log(H/He) <-6.216
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] 3.14 (0.3) 2.48 (0.6) 3.14 (0.3)
Distance [pc] 318.21 (34) 402.42 (97) 318.22 (34)
Composition He
Proper motion (right ascension) [mas/yr] 0.94314156 (0.3) -0.024008041 (0.8) 0.943 (0.3)
Proper motion (declination) [mas/yr] -24.25748414 (0.3) -23.47673796 (0.5) -24.257 (0.3)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.36 (0.03) 19.36 (0.03) 19.37 (0.03)
g magnitude 19.39 (0.01) 19.39 (0.01) 19.41 (0.02)
r magnitude 19.65 (0.02) 19.65 (0.01) 19.65 (0.02)
i magnitude 19.83 (0.02) 19.84 (0.02) 19.85 (0.03)
z magnitude 20.14 (0.08) 20.14 (0.08) 20.12 (0.07)
G magnitude 19.51 (0.04) 19.56 19.51 (0.004)
BP magnitude 19.48 (0.04) 19.39
RP magnitude 19.66 (0.06) 19.49
Pan g magnitude 19.41 (0.007)
Pan r magnitude 19.62 (0.008)
Pan i magnitude 19.86 (0.02)
Pan z magnitude 20.05 (0.02)
Pan y magnitude 19.96 (0.009)
E(B-V) 0.019

* 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.