WD 1239+277
All names: GALEX J124219.7+272756, [BGK2006] J124219.70+272756.0, Gaia EDR3 3962291842355447936, Gaia DR2 3962291842355447936, Gaia DR3 3962291842355447936, TIC 141277817, WD 1239+277, SDSS J124219.69+272755.9, LP 321-1897, 2MASS J12421975+2727563, KUV 12399+2744
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD H | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 42 19.64 (0.04) | 12 42 19.64 (0.06) | 12 42 19.64 | 12 42 19.73 (0.04) | 12 42 19.54 | |||||
| Declination | 27 27 55.50 (0.03) | 27 27 55.52 (0.04) | 27 27 55.50 | 27 27 56.21 (0.03) | 27 27 51.84 | |||||
| Spectral type | DA | DA | DA | DA3.3 | DA | |||||
| Effective temperature | [K] | 14244.0 | 15410.0 (265) | 15477.0 (232) | ||||||
| log(g) | [cgs] | 7.82 | 7.97 (0.05) | 7.90 (0.01) | ||||||
| Mass | [M☉] | 0.514 | 0.59 (0.03) | 0.557 (0.01) | ||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 0.1761 | ||||||||
| 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] | 8.90 (0.05) | 9.01 (0.08) | 8.90 | 8.90 (0.05) | |||||
| Distance | [pc] | 112.37 (0.6) | 110.95 (0.9) | 80.00 | 112.37 | 112.37 (0.6) | ||||
| Composition | H | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | -74.16643292 (0.05) | -74.07256206 (0.1) | -74.166 (0.05) | ||||||
| Proper motion (declination) | [mas/yr] | -44.45709007 (0.05) | -44.55817808 (0.07) | -44.457 (0.05) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 15.50 | |||||||||
| V magnitude | 15.70 | |||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 16.68 (0.1) | |||||||||
| H magnitude | 16.59 (0.2) | |||||||||
| K magnitude | ||||||||||
| u magnitude | 16.56 (0.007) | 16.54 | ||||||||
| g magnitude | 16.23 (0.004) | 16.21 | ||||||||
| r magnitude | 16.53 (0.004) | 16.53 | ||||||||
| i magnitude | 16.76 (0.005) | 16.75 | ||||||||
| z magnitude | 17.04 (0.01) | 17.03 | ||||||||
| G magnitude | 16.37 (0.003) | 16.39 | 16.37 | 16.37 (0.003) | ||||||
| BP magnitude | 16.34 (0.003) | 16.33 | ||||||||
| RP magnitude | 16.48 (0.005) | 16.48 | ||||||||
| Pan g magnitude | 16.25 (0.005) | |||||||||
| Pan r magnitude | 16.52 (0.003) | |||||||||
| Pan i magnitude | 16.79 (0.003) | |||||||||
| Pan z magnitude | 17.02 (0.003) | |||||||||
| Pan y magnitude | 17.17 (0.006) | |||||||||
| E(B-V) | 0.004 | |||||||||
* Constant surface field
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