KPD 0253+5052
All names: WDJ025722.03+510343.48, 2MASS J02572203+5103435, KPD 0253+5052, TIC 116005344, Gaia DR3 440396914222763264, GALEX J025722.0+510343, WD 0253+508, UCAC4 706-022631, Gaia DR2 440396914222763264, Gaia EDR3 440396914222763264, WISEA J025722.01+510343.5, WISE J025722.01+510343.5
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Hardy et al. 2023a | MWDD H | Gaia DR2 | Stilism | Ferrario et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 57 22.00 (0.03) | 02 57 22.00 (0.03) | 02 57 22.00 | 02 57 22.03 (0.03) | 02 57 22.00 | 02 57 14.86 | ||||||
| Declination | 51 03 43.70 (0.03) | 51 03 43.69 (0.03) | 51 03 43.70 | 51 03 43.48 (0.03) | 51 03 43.69 | 51 04 14.16 | ||||||
| Spectral type | DAH | DA | DA | DA: | DAH | DAP | ||||||
| Effective temperature | [K] | 20594.9 (655) | 16223.0 | 15000.0 | 21121.0 (265) | |||||||
| log(g) | [cgs] | 8.22 (0.1) | 7.96 | 8.00 (0) | 8.23 (0.01) | |||||||
| Mass | [M☉] | 0.7534137511412807 (0.2) | 0.595 | 0.764 (0.009) | ||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.1438 | ||||||||||
| 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] | 14.55 (0.04) | 14.65 (0.04) | 14.55 | 14.55 (0.04) | 14.65 (0.04) | ||||||
| Distance | [pc] | 68.72 (0.2) | 68.24 (0.2) | 68.72 | 68.72 (0.2) | 68.24 (0.2) | ||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -19.3094867 (0.04) | -19.25458463 (0.09) | -19.309 (0.04) | -19.25458463 | |||||||
| Proper motion (declination) | [mas/yr] | 13.33511074 (0.04) | 13.48567961 (0.07) | 13.335 (0.04) | 13.48567961 | |||||||
| Variability | ||||||||||||
| Magnetic | yes | yes | yes | |||||||||
| Bd | [MG] | 12.005909444075144 | 17 | |||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | 15.18 | |||||||||||
| V magnitude | 15.22 | |||||||||||
| R magnitude | 15.60 (0.05) | |||||||||||
| I magnitude | ||||||||||||
| J magnitude | 15.58 (0.06) | |||||||||||
| H magnitude | 15.30 (0.1) | |||||||||||
| K magnitude | 15.07 (0.1) | |||||||||||
| u magnitude | ||||||||||||
| g magnitude | ||||||||||||
| r magnitude | ||||||||||||
| i magnitude | ||||||||||||
| z magnitude | ||||||||||||
| G magnitude | 15.26 (0.002) | 15.28 | 15.26 | 15.26 (0.003) | 15.28 | |||||||
| BP magnitude | 15.16 (0.002) | 15.13 | 15.13 | |||||||||
| RP magnitude | 15.41 (0.002) | 15.41 | 15.41 | |||||||||
| Pan g magnitude | 15.14 (0.001) | |||||||||||
| Pan r magnitude | 15.46 (0.005) | |||||||||||
| Pan i magnitude | 15.74 (0.004) | |||||||||||
| Pan z magnitude | 15.98 (0.004) | |||||||||||
| Pan y magnitude | 16.13 (0.009) | |||||||||||
| E(B-V) | 0.002 | |||||||||||
* Constant surface field
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