WD 0920+023

All names: SDSS J092302.96+021031.7, SDSS J092302.95+021031.6, WD 0920+023, SDSS J092302.96+021031.6, GALEX J092303.0+021031, Gaia DR2 3844366952533745024, Gaia EDR3 3844366952533745024, Gaia DR3 3844366952533745024

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Bedard et al. 2020 MWDD H Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Kleinman et al. 2004 Vincent et al. 2023
Right ascension 09 23 02.96 (0.5) 09 23 02.96 09 23 02.96 (0.6) 09 23 02.96 (0.5) 09 23 02.96 09 23 01.44 09 23 02.96 09 23 02.96
Declination 02 10 31.63 (0.3) 02 10 31.61 02 10 31.63 (0.5) 02 10 31.66 (0.3) 02 10 31.60 02 10 25.32 02 10 31.69 02 10 31.69
Spectral type DA DA DA DA DA1.6 DA DA
Effective temperature [K] 32511.0 (1033) 26094.0 31188.0 (637) 32287.0 (641) 31461.0 (648)
log(g) [cgs] 7.86 (0.2) 8.14 8.09 (0.1) 8.06 (0.1) 8.15 (0.1)
Mass [M] 0.58 (0.1) 0.719 0.678 (0.08)
log(Luminosity) [L] -0.65 (0.1)
Cooling age [Gyr] 0.0068 (0.001) 0.0266
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] 0.40 (0.5) 1.35 (0.8) 0.40 (0.5)
Distance [pc] 2503.16 (3430) 739.28 (414) 2503.13 (3430)
Composition H H
Proper motion (right ascension) [mas/yr] 1.836932357 (0.6) 2.564395128 (1) 1.837 (0.6) -5.5 -7.0
Proper motion (declination) [mas/yr] -1.522658904 (0.4) -1.623904267 (0.9) -1.523 (0.4) -3.8 -2.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.46 (0.03) 19.46 (0.03) 19.33 (0.03) 19.30 19.32 (0.03) 19.30 (0.03)
g magnitude 19.65 (0.01) 19.65 (0.01) 19.63 (0.02) 19.63 19.63 (0.02) 19.63 (0.02)
r magnitude 20.06 (0.02) 20.06 (0.02) 20.12 (0.02) 20.13 20.13 (0.02) 20.13 (0.02)
i magnitude 20.43 (0.04) 20.43 (0.04) 20.48 (0.05) 20.49 20.49 (0.05) 20.49 (0.05)
z magnitude 20.83 (0.2) 20.83 (0.2) 20.17 (0.2) 20.16 20.18 (0.2) 20.16 (0.2)
G magnitude 19.85 (0.03) 19.92 19.85 (0.004)
BP magnitude 19.82 (0.03) 19.67
RP magnitude 19.98 (0.07) 19.98
Pan g magnitude 19.65 (0.01)
Pan r magnitude 20.05 (0.02)
Pan i magnitude 20.44 (0.02)
Pan z magnitude 20.59 (0.2)
Pan y magnitude 20.25 (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.