All names: EC 12206-1835, Gaia EDR3 3519617951228451328, J1223-1852, Gaia DR3 3519617951228451328, TIC 423568982, 2MASS J12231361-1852105, UCAC4 356-064523, GALEX J122313.6-185211, Gaia DR2 3519617951228451328, WDJ122313.57-185211.28
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Caron et al. 2023 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 12 23 13.59 (0.05) | 12 23 13.59 | 12 23 13.59 | 12 23 13.57 (0.05) | 12 23 13.59 | ||||||
Declination | -18 52 12.84 (0.03) | -18 52 12.79 | -18 52 12.84 | -18 52 11.28 (0.03) | -18 52 12.79 | ||||||
Spectral type | DC | DC | DC | ||||||||
Effective temperature | [K] | 8674.0 (30) | 9297.0 | 9051.0 | 8780.0 (71) | ||||||
log(g) | [cgs] | 8.16 (0.006) | 8.41 | 8.33 | 8.21 (0.01) | ||||||
Mass | [M☉] | 0.679 (0.006) | 0.859 | 0.79 | 0.709 (0.01) | ||||||
log(Luminosity) | [L☉] | ||||||||||
Cooling age | [Gyr] | 1.1900 | 1.4680 | 1.3270 | |||||||
log(H/He) | -4.0 | ||||||||||
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] | 20.76 (0.06) | 20.81 (0.07) | 20.81 (0.07) | 20.76 | 20.76 (0.06) | 20.81 (0.07) | ||||
Distance | [pc] | 48.17 (0.1) | 48.05 (0.2) | 48.04 (0.2) | 48.17 | 48.17 (0.1) | 48.04 (0.2) | ||||
Composition | He | ||||||||||
Proper motion (right ascension) | [mas/yr] | 24.74504076 (0.06) | 24.71666273 (0.1) | 24.745 (0.06) | 24.71666273 | ||||||
Proper motion (declination) | [mas/yr] | -97.12414518 (0.05) | -97.11276233 (0.09) | -97.124 (0.05) | -97.11276233 | ||||||
Variability | |||||||||||
Magnetic | |||||||||||
Bd | [MG] | ||||||||||
Infrared excess (disk) | |||||||||||
Binarity | |||||||||||
B magnitude | 16.71 (0.08) | ||||||||||
V magnitude | 16.61 (0.01) | ||||||||||
R magnitude | |||||||||||
I magnitude | |||||||||||
J magnitude | 16.28 (0.01) | 16.38 (0.1) | |||||||||
H magnitude | 16.15 (0.2) | 16.15 (0.2) | |||||||||
K magnitude | 16.24 (0.04) | 16.00 (0.3) | |||||||||
u magnitude | |||||||||||
g magnitude | 16.59 (0.07) | ||||||||||
r magnitude | 16.56 (0.05) | ||||||||||
i magnitude | 16.42 (0.01) | ||||||||||
z magnitude | |||||||||||
G magnitude | 16.45 (0.003) | 16.48 | 16.45 | 16.45 (0.003) | 16.48 | ||||||
BP magnitude | 16.52 (0.003) | 16.50 | 16.50 | ||||||||
RP magnitude | 16.31 (0.004) | 16.32 | 16.32 | ||||||||
Pan g magnitude | 16.51 (0.002) | 16.51 (0.002) | |||||||||
Pan r magnitude | 16.53 (0.006) | 16.53 (0.006) | |||||||||
Pan i magnitude | 16.66 (0.002) | 16.66 (0.002) | |||||||||
Pan z magnitude | 16.77 (0.006) | 16.77 (0.008) | |||||||||
Pan y magnitude | 16.87 (0.003) | 16.87 (0.003) | |||||||||
E(B-V) | 0.001 |
* 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.