WD 1242-020
All names: 2QZ J124438.9-022108, SDSS J124438.81-022107.6, Gaia DR2 3683007264605823744, Gaia DR3 3683007264605823744, Gaia EDR3 3683007264605823744, SDSS J124438.80-022107.5, SDSS J124438.77-022107.5, WD 1242-020, SDSS J124438.81-022107.5
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Tremblay et al. 2011 | Vincent et al. 2024 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Kleinman et al. 2004 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 44 38.72 (0.1) | 12 44 38.77 | 12 44 38.73 (0.2) | 12 44 38.72 | 12 44 38.80 (0.1) | 12 44 38.81 | 12 44 38.26 | 12 44 38.81 | 12 44 38.81 | ||||||
| Declination | -02 21 07.70 (0.09) | -02 21 07.58 | -02 21 07.69 (0.1) | -02 21 07.70 | -02 21 07.59 (0.09) | -02 21 07.56 | -02 21 12.24 | -02 21 07.56 | -02 21 07.56 | ||||||
| Spectral type | DA | DA | DA | DA3.5 | DA | DA3.5 | DA | DA | |||||||
| Effective temperature | [K] | 10566.0 | 11190.0 (150) | 10866.0 (338) | 10926.0 (88) | 10947.0 (38) | 10952.0 (90) | ||||||||
| log(g) | [cgs] | 8.07 | 8.23 (0.08) | 8.08 (0.05) | 8.03 (0.07) | 8.17 (0.03) | 8.05 (0.07) | ||||||||
| Mass | [M☉] | 0.647 | 0.74 (0.05) | 0.653 (0.04) | 0.7 (0.02) | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||||
| Cooling age | [Gyr] | 0.5781 | 0.6607 | ||||||||||||
| 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] | 5.40 (0.2) | 5.46 (0.2) | 5.40 | 5.40 (0.2) | ||||||||||
| Distance | [pc] | 185.14 (6) | 183.14 (7) | 185.14 | 185.14 (6) | ||||||||||
| Composition | H | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -74.76140328 (0.2) | -74.70400719 (0.4) | -74.761 (0.2) | -69.3 | -73.0 | |||||||||
| Proper motion (declination) | [mas/yr] | -6.968560794 (0.2) | -7.107269267 (0.3) | -6.969 (0.2) | -4.3 | -8.0 | |||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | |||||||||||||||
| B magnitude | 18.53 | ||||||||||||||
| V magnitude | 18.50 | ||||||||||||||
| R magnitude | |||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | |||||||||||||||
| H magnitude | |||||||||||||||
| K magnitude | |||||||||||||||
| u magnitude | 18.84 (0.02) | 18.84 (0.02) | 18.79 (0.02) | 18.81 | 18.77 (0.02) | 18.81 (0.02) | |||||||||
| g magnitude | 18.38 (0.007) | 18.38 (0.007) | 18.39 (0.02) | 18.39 | 18.39 (0.02) | 18.39 (0.02) | |||||||||
| r magnitude | 18.49 (0.009) | 18.49 (0.009) | 18.51 (0.02) | 18.52 | 18.50 (0.02) | 18.52 (0.02) | |||||||||
| i magnitude | 18.62 (0.01) | 18.62 (0.01) | 18.67 (0.02) | 18.68 | 18.66 (0.02) | 18.68 (0.02) | |||||||||
| z magnitude | 18.80 (0.04) | 18.80 (0.04) | 18.82 (0.05) | 18.81 | 18.79 (0.05) | 18.81 (0.05) | |||||||||
| G magnitude | 18.41 (0.02) | 18.44 | 18.41 | 18.41 (0.004) | |||||||||||
| BP magnitude | 18.45 (0.02) | 18.44 | |||||||||||||
| RP magnitude | 18.37 (0.03) | 18.37 | |||||||||||||
| Pan g magnitude | 18.40 (0.008) | ||||||||||||||
| Pan r magnitude | 18.50 (0.01) | ||||||||||||||
| Pan i magnitude | 18.69 (0.01) | ||||||||||||||
| Pan z magnitude | 18.87 (0.01) | ||||||||||||||
| Pan y magnitude | 18.98 (0.03) | ||||||||||||||
| E(B-V) | 0.017 | ||||||||||||||
* Constant surface field
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