Gaia DR2 301521311363899904

All names: GALEX J020223.7+312406, SDSS J020223.75+312405.5, TIC 63396523, USNO-A2.0 1200-00858619, WDJ020223.76+312405.93, Gaia DR3 301521311363899904, Gaia EDR3 301521311363899904, 2MASS J02022373+3124059, Gaia DR2 301521311363899904

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 02 02 23.75 (0.06) 02 02 23.75 02 02 23.75 02 02 23.76 (0.06) 02 02 23.75
Declination 31 24 05.12 (0.06) 31 24 05.15 31 24 05.12 31 24 05.93 (0.06) 31 24 05.15
Spectral type DA DA DA
Effective temperature [K] 9701.0 (41) 9749.0 9717.0 9816.0 (134)
log(g) [cgs] 8.04 (0.008) 8.06 7.99 8.07 (0.02)
Mass [M] 0.621 (0.008) 0.636 0.576 0.64 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 0.7017 0.6647
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] 12.01 (0.07) 12.13 (0.09) 12.01 12.01 (0.07) 12.13 (0.09)
Distance [pc] 83.30 (0.5) 82.46 (0.6) 83.30 83.30 (0.5) 82.46 (0.6)
Composition H
Proper motion (right ascension) [mas/yr] -3.053767377 (0.08) -3.083278255 (0.2) -3.054 (0.08) -3.083278255
Proper motion (declination) [mas/yr] -50.02646141 (0.08) -50.36335697 (0.2) -50.026 (0.08) -50.36335697
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.50 (0.3)
V magnitude
R magnitude 16.80 (0.3)
I magnitude
J magnitude 16.86 (0.1)
H magnitude
K magnitude
u magnitude 17.33 (0.01) 17.33 (0.01)
g magnitude 16.95 (0.004) 16.95 (0.004)
r magnitude 17.02 (0.005) 17.02 (0.005)
i magnitude 17.10 (0.006) 17.10 (0.006)
z magnitude 17.28 (0.02) 17.28 (0.02)
G magnitude 16.92 (0.007) 16.95 16.92 16.92 (0.003) 16.95
BP magnitude 16.99 (0.007) 16.98 16.98
RP magnitude 16.84 (0.007) 16.85 16.85
Pan g magnitude 16.93 (0.003)
Pan r magnitude 17.01 (0.002)
Pan i magnitude 17.14 (0.002)
Pan z magnitude 17.29 (0.004)
Pan y magnitude 17.39 (0.007)
E(B-V) 0.006

* 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.