PHL 1257
All names: Gaia DR3 2500748109710808064, SDSS J021952.57-002249.0, PB 6853, 2MASS J02195260-0022490, GALEX J021952.5-002248, WD 0217-006, PHL 1257, UM 419, SDSS J021952.57-002248.9, LAMOST J021952.59-002249.1, Gaia DR2 2500748109710808064, SDSS J021952.59-002249.3, LEDA 8881, LAMOST J021952.57-002249.0, SDSS J021952.58-002249.1, SDSS J021952.57-002249.1, Gaia EDR3 2500748109710808064, TIC 332891528
| 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 | 02 19 52.60 (0.08) | 02 19 52.58 | 02 19 52.60 (0.1) | 02 19 52.60 | 02 19 52.57 (0.08) | 02 19 52.58 | 02 19 51.43 | 02 19 52.57 | 02 19 52.57 | ||||||
| Declination | -00 22 49.56 (0.06) | -00 22 49.14 | -00 22 49.54 (0.09) | -00 22 49.56 | -00 22 48.98 (0.06) | -00 22 49.09 | -00 22 45.48 | -00 22 48.99 | -00 22 48.97 | ||||||
| Spectral type | DA | DA | DA | DA | DA | DA2.5 | DA | DA | |||||||
| Effective temperature | [K] | 15115.0 | 20990.0 (200) | 17291.0 (434) | 20241.0 (146) | 20257.0 (147) | 20306.0 (147) | ||||||||
| log(g) | [cgs] | 7.51 | 7.88 (0.03) | 7.65 (0.03) | 7.87 (0.02) | 7.87 (0.03) | 7.90 (0.02) | ||||||||
| Mass | [M☉] | 0.379 | 0.56 (0.01) | 0.441 (0.02) | 0.56 (0.01) | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||||
| Cooling age | [Gyr] | 0.0975 | 0.0427 | ||||||||||||
| 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] | 6.28 (0.08) | 6.39 (0.1) | 6.28 | 6.28 (0.08) | ||||||||||
| Distance | [pc] | 159.20 (2) | 156.40 (3) | 159.20 | 159.20 (2) | ||||||||||
| Composition | H | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | 27.03584385 (0.09) | 27.20127217 (0.3) | 27.036 (0.09) | 20.5 | 20.0 | |||||||||
| Proper motion (declination) | [mas/yr] | -35.78592355 (0.08) | -35.13322058 (0.2) | -35.786 (0.08) | -31.7 | -34.0 | |||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | |||||||||||||||
| B magnitude | 16.80 | ||||||||||||||
| V magnitude | 17.00 | ||||||||||||||
| R magnitude | |||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | 16.90 (0.02) | ||||||||||||||
| H magnitude | 16.93 (0.03) | ||||||||||||||
| K magnitude | 17.10 (0.09) | ||||||||||||||
| u magnitude | 16.50 (0.007) | 16.50 (0.007) | 16.49 (0.01) | 16.51 | 16.52 (0.01) | 16.51 (0.02) | |||||||||
| g magnitude | 16.39 (0.005) | 16.39 (0.005) | 16.37 (0.02) | 16.38 | 16.39 (0.02) | 16.38 (0.01) | |||||||||
| r magnitude | 16.71 (0.005) | 16.71 (0.005) | 16.68 (0.01) | 16.68 | 16.69 (0.02) | 16.68 (0.01) | |||||||||
| i magnitude | 16.98 (0.006) | 16.98 (0.006) | 17.01 (0.01) | 17.00 | 17.01 (0.02) | 17.00 (0.01) | |||||||||
| z magnitude | 17.24 (0.01) | 17.24 (0.01) | 17.23 (0.02) | 17.23 | 17.23 (0.02) | 17.23 (0.02) | |||||||||
| G magnitude | 16.59 (0.005) | 16.60 | 16.59 | 16.59 (0.004) | |||||||||||
| BP magnitude | 16.51 (0.005) | 16.46 | |||||||||||||
| RP magnitude | 16.70 (0.006) | 16.69 | |||||||||||||
| Pan g magnitude | 16.42 (0.006) | ||||||||||||||
| Pan r magnitude | 16.74 (0.002) | ||||||||||||||
| Pan i magnitude | 17.02 (0.006) | ||||||||||||||
| Pan z magnitude | 17.25 (0.006) | ||||||||||||||
| Pan y magnitude | 17.38 (0.01) | ||||||||||||||
| E(B-V) | 0.010 | ||||||||||||||
* Constant surface field
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