WD 1020-207

All names: WD1020-207, 2MASS J10224376-2100011, Gaia DR2 5667957225433304192, WDJ102243.75-210001.40, Gaia DR3 5667957225433304192, USNO-B1.0 0689-00242866, WD 1020-207, Gaia EDR3 5667957225433304192, GALEX J102243.7-210002, EC 10203-2044, TIC 47481377

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H Gaia DR2 Stilism Gianninas et al. 2011 Koester et al. 2009 Koester et al. 2001 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 10 22 43.66 (0.04) 10 22 43.67 (0.06) 10 22 43.80 10 22 43.66 10 22 43.75 (0.04) 10 22 43.67 10 22 43.13
Declination -21 00 01.77 (0.04) -21 00 01.76 (0.06) -21 00 02.00 -21 00 01.77 -21 00 01.39 (0.04) -21 00 01.76 -20 59 59.28
Spectral type DA DA DA DA DA2.5 DA2
Effective temperature [K] 18491.0 20550.0 (374) 19920.0 (58) 19042.0 (57) 19910.0 (309)
log(g) [cgs] 7.86 7.99 (0.06) 7.93 (0.01) 7.77 (0.01) 7.94 (0.01)
Mass [M] 0.544 0.62 (0.03) 0.5 0.59 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.0703
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] 13.23 (0.04) 13.25 (0.07) 13.23 13.23 (0.04) 13.25 (0.07)
Distance [pc] 75.60 (0.3) 75.47 (0.4) 75.00 75.60 75.60 (0.3) 75.47 (0.4)
Composition H H
Proper motion (right ascension) [mas/yr] -77.97201781 (0.05) -77.92751507 (0.1) -77.972 (0.05) -77.92751507
Proper motion (declination) [mas/yr] -23.72477628 (0.05) -23.62619488 (0.1) -23.725 (0.05) -23.62619488
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.03
V magnitude 15.09 15.09 15.09
R magnitude 15.10
I magnitude
J magnitude 15.67 (0.1)
H magnitude 15.32 (0.1)
K magnitude 15.69 (0.3)
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 15.09 (0.001) 15.11 15.09 15.09 (0.003) 15.11
BP magnitude 15.02 (0.001) 14.99 14.99
RP magnitude 15.28 (0.002) 15.29 15.29
Pan g magnitude 14.96 (0.001)
Pan r magnitude 15.29 (0.002)
Pan i magnitude 15.61 (0.002)
Pan z magnitude 15.85 (0.003)
Pan y magnitude 16.03 (0.007)
E(B-V) 0.001

* 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.