WD 1246-022

All names: SDSS J124851.30-022924.7, Gaia DR3 3682578764308891264, GALEX J124851.3-022924, Gaia EDR3 3682578764308891264, 2QZ J124851.3-022925, Gaia DR2 3682578764308891264, WD 1246-022, SDSS J124851.31-022924.7

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Hardy et al. 2023a MWDD H Gaia DR2 Stilism Ferrario et al. 2015 Kulebi et al. 2009 Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 12 48 51.28 (0.2) 12 48 51.30 12 48 51.28 (0.2) 12 48 51.31 12 48 51.28 12 48 51.31 (0.2) 12 48 51.31 12 48 50.33 12 48 51.31
Declination -02 29 24.78 (0.09) -02 29 24.74 -02 29 24.78 (0.1) -02 29 24.68 -02 29 24.78 -02 29 24.76 (0.09) -02 29 24.73 -02 29 20.76 -02 29 24.69
Spectral type DAH DA DA DAH DA: DAH DAH DAH DAH DAH
Effective temperature [K] 14263.4 (459) 12841.0 13500.0 13910.0 (690) 16492.0 (183) 18000.0 (212)
log(g) [cgs] 8.24 (0.4) 8.18 8.00 (0) 8.27 (0.06) 9.00 (0.001) 9.59 (0.05)
Mass [M☉] 0.7563171104244101 (0.5) 0.717 0.775 (0.05)
log(Luminosity) [L☉]
Cooling age [Gyr] 0.4031
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] 4.58 (0.2) 4.55 (0.2) 4.58 4.58 (0.2)
Distance [pc] 218.29 (9) 220.00 (11) 218.29 218.28 (9)
Composition H H
Proper motion (right ascension) [mas/yr] -28.15122345 (0.3) -28.17498938 (0.6) -28.151 (0.3) -21.4
Proper motion (declination) [mas/yr] -1.174715477 (0.2) -1.473616021 (0.3) -1.175 (0.2) -3.0
Variability
Magnetic yes yes yes yes yes
Bd [MG] 9.068099314891226 7.36 (2) 7.36 (2)
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.76 (0.02) 18.77 (0.02) 18.70 (0.02) 18.71 18.70 (0.02)
g magnitude 18.44 (0.007) 18.44 (0.007) 18.42 (0.02) 18.38 18.42 (0.02)
r magnitude 18.67 (0.009) 18.67 (0.009) 18.63 (0.02) 18.62 18.64 (0.02)
i magnitude 18.87 (0.01) 18.87 (0.01) 18.88 (0.02) 18.87 18.88 (0.02)
z magnitude 19.18 (0.06) 19.18 (0.06) 19.20 (0.07) 19.19 19.21 (0.07)
G magnitude 18.55 (0.02) 18.57 18.55 18.55 (0.003)
BP magnitude 18.58 (0.02) 18.54
RP magnitude 18.63 (0.04) 18.62
Pan g magnitude 18.45 (0.004)
Pan r magnitude 18.68 (0.009)
Pan i magnitude 18.94 (0.008)
Pan z magnitude 19.12 (0.02)
Pan y magnitude 19.24 (0.02)
E(B-V) 0.020

* 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.