SDSS J093423.17+082225.3

All names: WD 0931+085, SDSS J093423.13+082224.9, Gaia EDR3 587953535032442624, Gaia DR3 587953535032442624, SDSS J093423.18+082225.3, J0934+0822, Gaia DR2 587953535032442624, SDSS J093423.17+082225.3, GALEX J093423.1+082224

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Coutu et al. 2019 Gaia DR2 Stilism Dufour et al. 2007 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 09 34 23.11 (0.1) 09 34 23.18 09 34 23.19 09 34 23.11 (0.2) 09 34 23.11 09 34 23.19 (0.1) 09 34 22.70 09 34 23.18
Declination 08 22 24.76 (0.1) 08 22 25.32 08 22 25.44 08 22 24.78 (0.2) 08 22 24.76 08 22 25.44 (0.1) 08 22 18.84 08 22 25.35
Spectral type DZ DZ DZ DZ DZ5.5 DZ DZ
Effective temperature [K] 9453.0 (291) 9130.0 (110) 8823.0 (148) 10263.0 (144)
log(g) [cgs] 8.19 8.00 8.00 (0.03) 9.62 (0.3)
Mass [M] 0.6977 0.579 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 0.9580
log(H/He) <-5.7175 <-5.0
log(C/He)
log(Ca/He) -9.498 (0.03) -9.82 (0.03)
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] 9.19 (0.1) 9.04 9.04 (0.3) 9.19 9.19 (0.1)
Distance [pc] 108.81 (2) 110.62 (3) 110.62 (3) 117.00 108.81 108.81 (2)
Composition He He
Proper motion (right ascension) [mas/yr] -76.43182439 (0.2) -76.28724819 (0.4) -76.432 (0.2)
Proper motion (declination) [mas/yr] -42.69770027 (0.1) -42.46980897 (0.4) -42.698 (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 18.12 (0.01) 18.11 (0.01) 18.11 (0.02)
g magnitude 17.91 (0.006) 17.91 (0.006) 17.92 (0.02)
r magnitude 17.97 (0.007) 17.97 (0.007) 17.97 (0.01)
i magnitude 18.10 (0.01) 18.10 (0.01) 18.09 (0.02)
z magnitude 18.28 (0.03) 18.28 (0.03) 18.29 (0.03)
G magnitude 17.89 (0.009) 17.92 17.89 17.89 (0.003)
BP magnitude 17.97 (0.009) 17.94
RP magnitude 17.78 (0.01) 17.80
Pan g magnitude 17.91 (0.005)
Pan r magnitude 17.97 (0.004)
Pan i magnitude 18.11 (0.007)
Pan z magnitude 18.26 (0.008)
Pan y magnitude 18.32 (0.01)
E(B-V) 0.005

* 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.