WD 1215+087
All names: UCAC4 493-058755, SDSS J121735.22+082810.06, WDJ121735.27+082810.03, SDSS J121735.22+082810.0, LAMOST J121735.23+082810.1, Gaia DR3 3902183809407583872, WD 1215+087, SDSS J121735.25+082810.1, J1217+0828, GALEX J121735.2+082809, SDSS J121735.25+082810.0, USNO-B1.0 0984-00234478, Gaia DR2 3902183809407583872, Gaia EDR3 3902183809407583872
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Kilic et al. 2025 | Jewett et al. 2024 | Hardy et al. 2023a | Kilic et al. 2020 | MWDD H | Gaia DR2 | Stilism | Kepler et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 17 35.19 (0.06) | 12 17 35.25 | 12 17 35.20 (0.09) | 12 17 35.19 | 12 17 35.27 (0.06) | 12 17 35.20 | 12 17 35.04 | ||||||||||
| Declination | 08 28 10.01 (0.05) | 08 28 10.09 | 08 28 10.01 (0.05) | 08 28 10.01 | 08 28 10.03 (0.05) | 08 28 10.01 | 08 28 08.40 | ||||||||||
| Spectral type | DAH | DAH | DAH | DAH | DAH | DAH | DA: | DAH | DAH | ? | DAH | ||||||
| Effective temperature | [K] | 18654.0 (268) | 18654.0 (268) | 18583.4 (282) | 18651.0 (266) | 17852.0 | 20024.0 (64) | 19294.0 (445) | |||||||||
| log(g) | [cgs] | 8.72 (0.01) | 8.72 | 8.73 (0.04) | 8.73 (0.01) | 8.69 | 9.45 (0.01) | 8.76 (0.02) | |||||||||
| Mass | [M☉] | 1.063 (0.008) | 1.063 (0.008) | 1.0664785145873326 (0.05) | 1.067 (0.009) | 1.047 | 1.083 (0.01) | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||||||
| Cooling age | [Gyr] | 0.3800 (0.02) | 0.3841 | ||||||||||||||
| 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] | 12.34 (0.07) | 12.43 (0.1) | 12.34 | 12.34 (0.07) | 12.43 (0.1) | |||||||||||
| Distance | [pc] | 81.03 (0.5) | 80.47 (0.7) | 81.03 | 81.03 (0.5) | 80.47 (0.7) | |||||||||||
| Composition | H | H | H | ||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -67.62236684 (0.09) | -68.01969957 (0.3) | -67.622 (0.09) | -68.02 | ||||||||||||
| Proper motion (declination) | [mas/yr] | -1.533596969 (0.06) | -1.539113363 (0.1) | -1.534 (0.06) | -1.539 | ||||||||||||
| Variability | |||||||||||||||||
| Magnetic | yes | ||||||||||||||||
| Bd | [MG] | 3.500119344181944 | |||||||||||||||
| Infrared excess (disk) | |||||||||||||||||
| Binarity | |||||||||||||||||
| B magnitude | 16.64 (0.04) | ||||||||||||||||
| V magnitude | 16.49 (0.07) | ||||||||||||||||
| R magnitude | |||||||||||||||||
| I magnitude | |||||||||||||||||
| J magnitude | |||||||||||||||||
| H magnitude | |||||||||||||||||
| K magnitude | |||||||||||||||||
| u magnitude | 16.55 (0.007) | 16.55 (0.02) | 16.55 (0.007) | 16.55 (0.007) | |||||||||||||
| g magnitude | 16.52 (0.004) | 16.54 (0.01) | 16.52 (0.004) | 16.52 (0.004) | |||||||||||||
| r magnitude | 16.83 (0.005) | 16.84 (0.01) | 16.83 (0.005) | 16.83 (0.005) | |||||||||||||
| i magnitude | 17.12 (0.006) | 17.12 (0.01) | 17.12 (0.006) | 17.12 (0.006) | |||||||||||||
| z magnitude | 17.40 (0.01) | 17.40 (0.02) | 17.40 (0.01) | 17.40 (0.01) | |||||||||||||
| G magnitude | 16.68 (0.004) | 16.70 | 16.68 | 16.68 (0.003) | 16.70 | ||||||||||||
| BP magnitude | 16.61 (0.004) | 16.59 | 16.59 | ||||||||||||||
| RP magnitude | 16.82 (0.01) | 16.84 | 16.84 | ||||||||||||||
| Pan g magnitude | 16.54 (0.003) | ||||||||||||||||
| Pan r magnitude | 16.84 (0.006) | ||||||||||||||||
| Pan i magnitude | 17.13 (0.004) | ||||||||||||||||
| Pan z magnitude | 17.39 (0.005) | ||||||||||||||||
| Pan y magnitude | 17.57 (0.009) | ||||||||||||||||
| E(B-V) | 0.003 | ||||||||||||||||
* Constant surface field
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