WD 0254-072
All names: SDSS J025641.61-070033.7, Gaia DR2 5180517706222368768, Gaia DR3 5180517706222368768, J0256-0700, WDJ025641.62-070033.83, LP 651-34, Gaia EDR3 5180517706222368768, SDSS J025641.62-070033.8, WD 0254-072, NLTT 9392
| 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 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 56 42.02 (0.2) | 02 56 42.01 (0.2) | 02 56 42.02 | 02 56 41.62 (0.2) | 02 56 42.01 | 02 56 40.97 | ||||||
| Declination | -07 00 37.11 (0.1) | -07 00 37.01 (0.2) | -07 00 37.11 | -07 00 33.83 (0.1) | -07 00 37.01 | -07 00 27.36 | ||||||
| Spectral type | DC | DC | DC | DC: | DC | DC12.0 | ||||||
| Effective temperature | [K] | 4739.0 (42) | 4669.0 | 4367.0 | 4722.0 (61) | |||||||
| log(g) | [cgs] | 7.25 (0.03) | 7.16 | 6.88 | 7.25 (0.04) | |||||||
| Mass | [M☉] | 0.235 (0.01) | 0.207 | 0.131 | 0.236 (0.02) | |||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 2.0600 | 2.0310 | |||||||||
| 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] | 16.68 (0.2) | 16.32 (0.2) | 16.32 (0.2) | 16.68 | 16.68 (0.2) | 16.32 (0.2) | |||||
| Distance | [pc] | 59.93 (0.6) | 61.27 (0.8) | 61.27 (0.8) | 59.93 | 59.93 (0.6) | 61.27 (0.8) | |||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 373.3634981 (0.2) | 374.2880115 (0.3) | 373.363 (0.2) | 374.2880115 | |||||||
| Proper motion (declination) | [mas/yr] | -204.9362659 (0.2) | -205.3693913 (0.3) | -204.936 (0.2) | -205.3693913 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | ||||||||||||
| V magnitude | 18.55 | |||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | 16.71 (0.05) | 16.71 (0.05) | ||||||||||
| H magnitude | 16.62 (0.05) | 16.62 (0.05) | ||||||||||
| K magnitude | 16.48 (0.06) | 16.48 (0.06) | ||||||||||
| u magnitude | 20.75 (0.07) | 20.79 (0.09) | 20.82 (0.08) | 20.54 | ||||||||
| g magnitude | 19.02 (0.01) | 19.00 (0.01) | 18.81 | |||||||||
| r magnitude | 18.14 (0.008) | 18.11 (0.007) | 18.01 | |||||||||
| i magnitude | 17.79 (0.009) | 17.79 (0.008) | 17.67 | |||||||||
| z magnitude | 17.67 (0.02) | 17.65 (0.02) | 17.59 | |||||||||
| G magnitude | 18.17 (0.02) | 18.19 | 18.17 | 18.17 (0.003) | 18.19 | |||||||
| BP magnitude | 18.73 (0.02) | 18.70 | 18.70 | |||||||||
| RP magnitude | 17.48 (0.01) | 17.46 | 17.46 | |||||||||
| Pan g magnitude | 18.87 (0.02) | 18.87 (0.02) | ||||||||||
| Pan r magnitude | 18.09 (0.02) | 18.09 (0.02) | ||||||||||
| Pan i magnitude | 17.80 (0.007) | 17.80 (0.007) | ||||||||||
| Pan z magnitude | 17.72 (0.007) | 17.72 (0.007) | ||||||||||
| Pan y magnitude | 17.66 (0.02) | 17.66 (0.02) | ||||||||||
| E(B-V) | 0.001 | |||||||||||
* Constant surface field
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