WD 1243-137

All names: EC12438-1346, 2MASS J12463036-1402402, WD 1243-137, TIC 405663934, Gaia DR2 3528607382202666368, GALEX J124630.3-140239, EC 12438-1346, Gaia EDR3 3528607382202666368, Gaia DR3 3528607382202666368

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD HE Gaia DR2 Stilism Voss et al. 2007 Koester et al. 2001 Vincent et al. 2024 Simbad White Dwarf Catalog (McCook & Sion 1999)
Right ascension 12 46 30.33 (0.04) 12 46 30.33 (0.07) 12 46 30.40 12 46 30.33 12 46 30.35 (0.04) 12 46 30.00
Declination -14 02 39.71 (0.02) -14 02 39.72 (0.04) -14 02 41.00 -14 02 39.71 -14 02 40.03 (0.02) -14 02 40.92
Spectral type DB DB DB DB DB
Effective temperature [K] 14880.0 16914.0 17640.0 (81) 15510.0 (235)
log(g) [cgs] 7.81 7.93 8.28 (0.04) 7.89 (0.02)
Mass [M] 0.488 0.553 0.528 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.1526 1.2530
log(H/He) -4.63
log(C/He)
log(Ca/He)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 8.85 (0.05) 8.75 (0.08) 8.85 8.85 (0.05)
Distance [pc] 112.95 (0.7) 114.33 (1) 112.95 112.95 (0.7)
Composition He
Proper motion (right ascension) [mas/yr] -20.86220758 (0.06) -20.76011461 (0.2) -20.862 (0.06)
Proper motion (declination) [mas/yr] 19.92314436 (0.04) 19.93473133 (0.09) 19.923 (0.04)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.29
V magnitude 16.39 16.39 16.39
R magnitude
I magnitude
J magnitude 16.52 (0.1)
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 16.29 (0.004) 16.31 16.29 16.29 (0.003)
BP magnitude 16.23 (0.004) 16.19
RP magnitude 16.39 (0.004) 16.39
Pan g magnitude 16.21 (0.004)
Pan r magnitude 16.46 (0.003)
Pan i magnitude 16.72 (0.002)
Pan z magnitude 16.94 (0.003)
Pan y magnitude 17.12 (0.008)
E(B-V) 0.007

* 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.