SDSS J085052.23+034443.9

All names: SDSS J085052.23+034443.9, SDSS J085052.23+034443.8, GALEX J085052.2+034444, Gaia DR3 581228234721999360, Gaia EDR3 581228234721999360, Gaia DR2 581228234721999360, SDSS J085052.22+034443.8

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Bedard et al. 2020 MWDD H Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 08 50 52.21 (0.6) 08 50 52.23 08 50 52.21 (1) 08 50 52.23 (0.6) 08 50 52.23
Declination 03 44 43.83 (0.3) 03 44 43.87 03 44 43.83 (0.6) 03 44 43.86 (0.3) 03 44 43.86
Spectral type DAB DAB: DAB DAB: DA
Effective temperature [K] 31013.0 (2410) 14951.0 59364.0 (3216)
log(g) [cgs] 8.00 (0.4) 8.42 6.90 (0.2)
Mass [M] 0.61 (0.2) 0.873
log(Luminosity) [L] -0.85 (0.3)
Cooling age [Gyr] 0.0089 (0.004) 0.3896
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 1.72 (0.6) 2.47 (0.9) 1.72 (0.6)
Distance [pc] 581.55 (208) 404.27 (143) 581.56 (208)
Composition H H
Proper motion (right ascension) [mas/yr] -15.72095116 (0.8) -14.7237807 (2) -15.721 (0.8)
Proper motion (declination) [mas/yr] -1.518351363 (0.5) -1.817148826 (1) -1.518 (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 19.75 (0.03) 19.75 (0.04) 19.75 (0.04)
g magnitude 19.95 (0.02) 19.96 (0.03) 19.96 (0.03)
r magnitude 20.28 (0.03) 20.27 (0.04) 20.27 (0.04)
i magnitude 20.53 (0.05) 20.53 (0.05) 20.53 (0.05)
z magnitude 20.58 (0.2) 20.62 (0.2) 20.62 (0.2)
G magnitude 20.14 (0.07) 20.20 20.14 (0.006)
BP magnitude 19.86 (0.07) 19.84
RP magnitude 20.45 (0.1) 20.06
Pan g magnitude 19.98 (0.01)
Pan r magnitude 20.30 (0.01)
Pan i magnitude 20.65 (0.03)
Pan z magnitude 20.81 (0.05)
Pan y magnitude
E(B-V) 0.033

* 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.