WD 0222+422
All names: NLTT 7948, 2MASS J02255196+4228042, Gaia DR2 339492017717622016, Gaia DR2 341372212664612608, USNO-B1.0 1324-00053079, KUV 02245+3145, LP 197-5, WDJ022551.96+422803.52, 02258+4228W, PSO J022552.411+422800.915, PSO J022552.460+422800.625, WD 0222+422.2, WD 0222+422B, WD 0222+422, WD 0224+317, USNO-B1.0 1219-00031966, LSPM J0225+4228W
| Parameter | Unit | Blouin et al. 2019 | MWDD H | Pan-STARRS DR1 | Gaia DR2 | Limoges et al. 2015 | Gianninas et al. 2011 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 25 52.52 (0.1) | 02 25 51.96 | 02 25 52.52 | 02 25 51.62 | ||||||
| Declination | 42 28 00.32 (0.1) | 42 28 04.30 | 42 28 00.32 | 42 28 30.00 | ||||||
| Spectral type | DA | DA | DA | DA | DA8.0 | DA | ||||
| Effective temperature | [K] | 6190.0 (65) | 6213.0 | 5410.0 (177) | 6320.0 (280) | |||||
| log(g) | [cgs] | 7.94 (0.03) | 7.94 | 8.00 (0) | 8.17 (0.6) | |||||
| Mass | [M☉] | 0.5529999999999999 (0.02) | 0.555 | 0.58 (0.1) | 0.69 (0.3) | |||||
| log(Luminosity) | [L☉] | -3.91 | ||||||||
| Cooling age | [Gyr] | 1.8740 (0.1) | 1.8620 | |||||||
| 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] | 19.82 (0.2) | 19.82 (0.2) | 19.82 (0.2) | ||||||
| Distance | [pc] | 50.45 (0.4) | 50.45 (0.4) | 38.10 (2) | 41.00 | 50.45 (0.4) | ||||
| Composition | H | H | H | |||||||
| Proper motion (right ascension) | [mas/yr] | 397.4046392 (0.2) | 411.0 | 397.4046392 | ||||||
| Proper motion (declination) | [mas/yr] | -206.7686543 (0.2) | -208.0 | -206.7686543 | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | yes | |||||||||
| B magnitude | 16.00 | |||||||||
| V magnitude | 17.33 | |||||||||
| R magnitude | 16.70 | |||||||||
| I magnitude | 16.80 | |||||||||
| J magnitude | 16.50 (0.1) | 16.50 | ||||||||
| H magnitude | 16.26 (0.2) | 16.26 | ||||||||
| K magnitude | 16.17 (0.2) | 16.17 | ||||||||
| u magnitude | ||||||||||
| g magnitude | ||||||||||
| r magnitude | ||||||||||
| i magnitude | ||||||||||
| z magnitude | ||||||||||
| G magnitude | 17.33 | 17.33 | ||||||||
| BP magnitude | 17.58 | 17.58 | ||||||||
| RP magnitude | 16.89 | 16.89 | ||||||||
| Pan g magnitude | 17.61 (0.01) | 17.60 (0.002) | ||||||||
| Pan r magnitude | 17.32 (0.004) | 17.33 (0.002) | ||||||||
| Pan i magnitude | 17.21 (0.004) | 17.21 (0.006) | ||||||||
| Pan z magnitude | 17.23 (0.003) | 17.22 (0.005) | ||||||||
| Pan y magnitude | 17.22 (0.02) | 17.24 (0.007) | ||||||||
* Constant surface field
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