WD 1234+481

All names: [TFW97] J123645.29+475523.20, Gaia DR2 1543778685487242368, TIC 444045724, 1RXS J123645.3+475530, RBS 1131, RE J1236+47, WD 1234+482, [ZEH2003] RX J1236.7+4755 1, 2RE J123644+475528, LAMOST J123645.11+475522.0, RE J123644+475529, WD 1234+481, RX J1236.7+4755, Gaia EDR3 1543778685487865856, PG 1234+482, 2RE J1236+475, GSC 03456-01131, 2MASS J12364518+4755223, 2EUVE J1236+47.9, RE J1236+475, SDSS J123645.11+475522.0, LAMOST J123645.14+475522.1, Balloon 114041005, Gaia DR3 1543778685487865856, HS 1234+4811, CHSS 2325, 2RXP J123645.2+475529, RX J1236.8+4755, EUVE J1236+47.9, LAMOST J123645.05+475521.5

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H Gaia DR2 Stilism Guo et al. 2015 Gianninas et al. 2011 Liebert et al. 2005 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999)
Right ascension 12 36 45.01 (0.02) 12 36 45.01 (0.03) 12 36 45.01 12 36 45.14 (0.02) 12 36 45.26
Declination 47 55 21.23 (0.03) 47 55 21.27 (0.03) 47 55 21.23 47 55 22.22 (0.03) 47 55 23.88
Spectral type DA DA DA DA DA.9 DA
Effective temperature [K] 28547.0 56630.0 (1005) 55040.0 (975)
log(g) [cgs] 7.15 7.86 (0.06) 7.78 (0.06)
Mass [M] 0.335 0.64 (0.03) 0.61 (0.02)
log(Luminosity) [L] 0.35
Cooling age [Gyr] 0.0108 0.0017
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] 7.10 (0.05) 7.09 (0.05) 7.10 7.09 (0.05) 6.30
Distance [pc] 140.94 (0.9) 141.07 (1) 133.00 144.00 140.94 140.94 (0.9) 158.73
Composition H H
Proper motion (right ascension) [mas/yr] -86.54878464 (0.03) -86.68445925 (0.05) -86.549 (0.03)
Proper motion (declination) [mas/yr] -61.49387735 (0.04) -61.54756217 (0.06) -61.494 (0.04)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude 14.45 14.38
R magnitude
I magnitude
J magnitude 14.98 (0.04)
H magnitude 14.96 (0.07)
K magnitude 14.94 (0.1)
u magnitude 13.65 (0.01) 13.64
g magnitude 14.10 (0.03) 14.07
r magnitude 14.63 (0.03) 14.64
i magnitude 15.00 (0.02) 14.99
z magnitude 15.32 (0.02) 15.30
G magnitude 14.37 (0.001) 14.37 14.37 14.37 (0.003)
BP magnitude 14.18 (0.001) 14.11
RP magnitude 14.68 (0.001) 14.67
Pan g magnitude 14.19 (0.005)
Pan r magnitude 14.64 (0.003)
Pan i magnitude 15.03 (0.002)
Pan z magnitude 15.30 (0.004)
Pan y magnitude 15.45 (0.004)
E(B-V) 0.008

* 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.