LB 244
All names: WD 1247+575, Gaia DR2 1576821930476727552, SDSS J124916.38+571801.2, SDSS J124916.44+571801.4, Gaia DR3 1576821930476727552, LAMOST J124916.40+571801.4, SDSS J124916.39+571801.2, 2MASS J12491644+5718016, SBSS 1247+575, TIC 150344502, PG 1247+576, Gaia EDR3 1576821930476727552, LB 244
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 49 16.37 (0.04) | 12 49 16.45 | 12 49 16.37 (0.06) | 12 49 16.37 | 12 49 16.46 (0.04) | 12 49 16.92 | ||||||
| Declination | 57 18 01.17 (0.04) | 57 18 01.47 | 57 18 01.18 (0.05) | 57 18 01.17 | 57 18 01.49 (0.04) | 57 17 58.20 | ||||||
| Spectral type | DA | DA | DA | DA2.3 | DA | DA | ||||||
| Effective temperature | [K] | 19863.0 | 21970.0 (416) | 21720.0 (414) | ||||||||
| log(g) | [cgs] | 8.18 | 8.19 (0.06) | 8.28 (0.02) | ||||||||
| Mass | [M☉] | 0.731 | 0.74 (0.04) | 0.793 (0.01) | ||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.1080 | ||||||||||
| 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] | 7.92 (0.04) | 7.91 (0.07) | 7.92 | 7.92 (0.04) | |||||||
| Distance | [pc] | 126.25 (0.7) | 126.39 (1) | 126.00 | 126.25 | 126.25 (0.7) | ||||||
| Composition | H | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -46.2359619 (0.05) | -46.25641525 (0.1) | -46.236 (0.05) | ||||||||
| Proper motion (declination) | [mas/yr] | -19.73445857 (0.05) | -19.91709363 (0.09) | -19.734 (0.05) | ||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | 16.40 | |||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | 16.71 (0.1) | |||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 16.38 (0.006) | 16.38 (0.006) | ||||||||||
| g magnitude | 16.38 (0.004) | 16.38 (0.004) | ||||||||||
| r magnitude | 16.77 (0.004) | 16.77 (0.004) | ||||||||||
| i magnitude | 17.06 (0.005) | 17.06 (0.005) | ||||||||||
| z magnitude | 17.39 (0.02) | 17.39 (0.01) | ||||||||||
| G magnitude | 16.58 (0.003) | 16.61 | 16.58 | 16.58 (0.003) | ||||||||
| BP magnitude | 16.51 (0.003) | 16.46 | ||||||||||
| RP magnitude | 16.78 (0.005) | 16.76 | ||||||||||
| Pan g magnitude | 16.42 (0.003) | |||||||||||
| Pan r magnitude | 16.78 (0.003) | |||||||||||
| Pan i magnitude | 17.09 (0.004) | |||||||||||
| Pan z magnitude | 17.36 (0.01) | |||||||||||
| Pan y magnitude | 17.52 (0.01) | |||||||||||
| E(B-V) | 0.010 | |||||||||||
* Constant surface field
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