WD 1218+123
All names: RMB 170, EQ 1218+123, WD 1218+123, SDSS J122049.58+120445.8, Gaia DR3 3908196179506719488, Gaia DR2 3908196179506719488, GALEX J122049.5+120445, LBQS 1218+1221, SDSS J122049.57+120445.9, Gaia EDR3 3908196179506719488, [HCP84] U1
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD H | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 20 49.56 (0.1) | 12 20 49.56 (0.2) | 12 20 49.56 | 12 20 49.59 (0.1) | 12 20 49.54 | |||||
| Declination | 12 04 45.98 (0.09) | 12 04 45.97 (0.1) | 12 04 45.98 | 12 04 45.79 (0.09) | 12 04 45.48 | |||||
| Spectral type | DA | DA | DA | DA | DA | |||||
| Effective temperature | [K] | 16454.0 | 16870.0 (1209) | |||||||
| log(g) | [cgs] | 7.74 | 7.65 (0.08) | |||||||
| Mass | [M☉] | 0.479 | 0.44 (0.05) | |||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 0.0918 | ||||||||
| 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] | 3.12 (0.1) | 3.29 (0.3) | 3.12 | 3.12 (0.1) | |||||
| Distance | [pc] | 320.19 (15) | 304.31 (24) | 320.19 | 320.18 (15) | |||||
| Composition | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -25.67616477 (0.2) | -26.25899401 (0.5) | -25.676 (0.2) | ||||||
| Proper motion (declination) | [mas/yr] | 11.40921212 (0.1) | 11.5610943 (0.3) | 11.409 (0.1) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 19.00 | |||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 18.56 (0.07) | |||||||||
| H magnitude | 18.80 (0.1) | |||||||||
| K magnitude | ||||||||||
| u magnitude | 18.11 (0.01) | |||||||||
| g magnitude | 17.99 (0.02) | |||||||||
| r magnitude | 18.36 (0.02) | |||||||||
| i magnitude | 18.62 (0.02) | |||||||||
| z magnitude | 18.93 (0.04) | |||||||||
| G magnitude | 18.17 (0.01) | 18.21 | 18.17 | 18.17 (0.003) | ||||||
| BP magnitude | 18.09 (0.01) | 18.01 | ||||||||
| RP magnitude | 18.30 (0.03) | 18.22 | ||||||||
| Pan g magnitude | 18.03 (0.005) | |||||||||
| Pan r magnitude | 18.35 (0.007) | |||||||||
| Pan i magnitude | 18.64 (0.006) | |||||||||
| Pan z magnitude | 18.91 (0.02) | |||||||||
| Pan y magnitude | 19.02 (0.02) | |||||||||
| E(B-V) | 0.023 | |||||||||
* Constant surface field
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