WD 0957+428
All names: LSPM J1000+4236, J1000+4236, WD 0957+428, Gaia EDR3 807222713688595200, SDSS J100029.47+423631.1, LP 212-21, Gaia DR2 807222713688595200, SDSS J100029.47+423631.2, Gaia DR3 807222713688595200, WDJ100029.57+423631.36, USNO-B1.0 1326-00257260, NLTT 23139, SDSS J100029.48+423631.1
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | 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 | 10 00 29.07 (0.1) | 10 00 29.08 (0.2) | 10 00 29.07 | 10 00 29.57 (0.1) | 10 00 29.08 | 10 00 28.85 | |||||||
| Declination | 42 36 30.02 (0.1) | 42 36 30.06 (0.2) | 42 36 30.02 | 42 36 31.36 (0.1) | 42 36 30.06 | 42 36 28.44 | |||||||
| Spectral type | DC | DC | DC | DC | DC: | DC | DC10.4 | ||||||
| Effective temperature | [K] | 4678.0 (56) | 4733.0 (56) | 4744.0 | 4433.0 | 4804.0 (79) | |||||||
| log(g) | [cgs] | 7.87 (0.03) | 7.96 (0.03) | 7.95 | 7.72 | 7.95 (0.04) | |||||||
| Mass | [M☉] | 0.499 (0.02) | 0.556 (0.03) | 0.546 | 0.412 | 0.548 (0.04) | |||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 6.6600 | 6.1940 | 4.4960 | |||||||||
| 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] | 17.33 (0.2) | 17.70 (0.4) | 17.70 (0.4) | 17.33 | 17.33 (0.2) | 17.70 (0.4) | ||||||
| Distance | [pc] | 57.71 (0.7) | 56.50 (1) | 56.49 (1) | 57.71 | 57.71 (0.7) | 56.49 (1) | ||||||
| Composition | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -345.5427742 (0.2) | -345.5760843 (0.5) | -345.543 (0.2) | -345.5760843 | ||||||||
| Proper motion (declination) | [mas/yr] | -83.37984776 (0.2) | -83.80150008 (0.6) | -83.38 (0.2) | -83.80150008 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 19.70 | ||||||||||||
| V magnitude | |||||||||||||
| R magnitude | 19.10 | ||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 17.47 (0.04) | 17.47 (0.04) | |||||||||||
| H magnitude | 17.23 (0.04) | 17.23 (0.04) | |||||||||||
| K magnitude | 17.13 (0.05) | 17.13 (0.05) | |||||||||||
| u magnitude | 21.73 (0.2) | 21.73 (0.2) | 21.73 (0.2) | 21.70 | |||||||||
| g magnitude | 19.59 (0.01) | 19.59 (0.01) | 19.58 | ||||||||||
| r magnitude | 18.79 (0.01) | 18.79 (0.01) | 18.79 | ||||||||||
| i magnitude | 18.45 (0.01) | 18.45 (0.01) | 18.46 | ||||||||||
| z magnitude | 18.37 (0.03) | 18.37 (0.03) | 18.39 | ||||||||||
| G magnitude | 18.80 (0.03) | 18.83 | 18.80 | 18.80 (0.003) | 18.83 | ||||||||
| BP magnitude | 19.31 (0.03) | 19.29 | 19.29 | ||||||||||
| RP magnitude | 18.17 (0.02) | 18.10 | 18.10 | ||||||||||
| Pan g magnitude | 19.50 (0.03) | 19.50 (0.03) | |||||||||||
| Pan r magnitude | 18.74 (0.03) | 18.74 (0.03) | |||||||||||
| Pan i magnitude | 18.46 (0.005) | 18.46 (0.004) | |||||||||||
| Pan z magnitude | 18.37 (0.006) | 18.37 (0.005) | |||||||||||
| Pan y magnitude | 18.34 (0.02) | 18.34 (0.03) | |||||||||||
| E(B-V) | 0.002 | ||||||||||||
* Constant surface field
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