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
Spectra without link are available upon request
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.