SDSS J224254.73+215939.1
All names: SDSS J224254.72+215939.2, [HHD2009] SDSS J2242+2159, GALEX J224254.7+215939, SDSS J224254.72+215939.1, Gaia DR3 2836507281154782976, WD 2240+217, Gaia EDR3 2836507281154782976, SDSS J224254.73+215939.1, Gaia DR2 2836507281154782976
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 42 54.73 (0.1) | 22 42 54.73 | 22 42 54.73 (0.2) | 22 42 54.73 | 22 42 54.72 (0.1) | 22 42 54.79 | 22 42 54.72 | |||||
| Declination | 21 59 39.10 (0.2) | 21 59 39.15 | 21 59 39.10 (0.3) | 21 59 39.10 | 21 59 39.18 (0.2) | 21 59 38.40 | 21 59 39.19 | |||||
| Spectral type | DA+M | DA | DA+M | DA2.7 | DA+M | DA+MS | ||||||
| Effective temperature | [K] | 11878.0 | 11535.0 (340) | 20128.0 (169) | ||||||||
| log(g) | [cgs] | 7.49 | 7.17 (0.05) | 7.92 (0.03) | ||||||||
| Mass | [M☉] | 0.361 | 0.264 (0.02) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.2151 | ||||||||||
| 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] | 3.35 (0.2) | 3.78 (0.2) | 3.35 | 3.35 (0.2) | |||||||
| Distance | [pc] | 298.57 (14) | 264.48 (14) | 298.57 | 298.57 (14) | |||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 2.436627595 (0.2) | 1.643377399 (0.4) | 2.437 (0.2) | ||||||||
| Proper motion (declination) | [mas/yr] | -4.983611973 (0.2) | -5.84122193 (0.4) | -4.984 (0.2) | ||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | yes | WDMS | WDMS | |||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 18.09 (0.01) | 18.09 (0.01) | 18.40 | 18.09 (0.02) | ||||||||
| g magnitude | 17.97 (0.006) | 17.97 (0.006) | 18.30 | 18.03 (0.02) | ||||||||
| r magnitude | 18.30 (0.008) | 18.30 (0.008) | 18.62 | 18.31 (0.02) | ||||||||
| i magnitude | 18.40 (0.01) | 18.40 (0.01) | 18.74 | 18.43 (0.01) | ||||||||
| z magnitude | 18.23 (0.02) | 18.23 (0.02) | 18.59 | 18.27 (0.03) | ||||||||
| G magnitude | 18.17 (0.01) | 18.18 | 18.17 | 18.17 (0.003) | ||||||||
| BP magnitude | 18.08 (0.01) | 18.09 | ||||||||||
| RP magnitude | 18.02 (0.01) | 18.02 | ||||||||||
| Pan g magnitude | 18.03 (0.004) | |||||||||||
| Pan r magnitude | 18.32 (0.006) | |||||||||||
| Pan i magnitude | 18.44 (0.007) | |||||||||||
| Pan z magnitude | 18.36 (0.01) | |||||||||||
| Pan y magnitude | 18.17 (0.01) | |||||||||||
| E(B-V) | 0.041 | |||||||||||
* Constant surface field
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