GD 222
All names: WD 1936+32, WD 1936+327, Gaia DR3 2045444369069839744, 19384+3253, GEN# +6.10060222, USNO-B1.0 1228-00471448, WDJ193828.20+325319.69, Gaia EDR3 2045444369069839744, PM J19384+3253, GJ 2146, PLX 4613.01, Gaia DR2 2045444369069839744, 2MASS J19382820+3253198, BPM 94484, EGGR 226, UCAC2 43315552, TIC 69690429, LSPM J1938+3253, USNO 663, GD 222
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD H | Gaia DR2 | Bedard et al. 2017 | Stilism | Limoges et al. 2015 | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 19 38 28.12 (0.02) | 19 38 28.12 (0.02) | 19 38 28.12 | 19 38 28.20 (0.02) | 19 38 28.12 | 19 38 28.51 | |||||||
| Declination | 32 53 17.57 (0.02) | 32 53 17.64 (0.03) | 32 53 17.57 | 32 53 19.69 (0.02) | 32 53 17.64 | 32 53 23.64 | |||||||
| Spectral type | DA | DA | DA | DA | DA | DA2.3 | DA2.5 | ||||||
| Effective temperature | [K] | 20629.0 | 22228.0 (339) | 22120.0 (341) | 22230.0 (344) | 22068.0 (182) | |||||||
| log(g) | [cgs] | 7.89 | 7.91 (0.05) | 7.93 (0.05) | 7.94 (0.05) | 7.94 (0.007) | |||||||
| Mass | [M☉] | 0.567 | 0.59 (0.03) | 0.59 (0.03) | 0.597 (0.005) | ||||||||
| log(Luminosity) | [L☉] | -1.39 | |||||||||||
| Cooling age | [Gyr] | 0.0455 | |||||||||||
| 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] | 24.47 (0.02) | 24.52 (0.03) | 28.70 (2) | 24.47 | 24.47 (0.02) | 24.52 (0.03) | 29.00 | |||||
| Distance | [pc] | 40.87 (0.04) | 40.78 (0.05) | 34.80 (3) | 34.80 (3) | 42.00 | 40.87 | 40.87 (0.04) | 40.78 (0.05) | 34.48 | |||
| Composition | H | H | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -66.0933922 (0.02) | -66.04631827 (0.05) | -66.093 (0.02) | -66.04631827 | ||||||||
| Proper motion (declination) | [mas/yr] | -132.355698 (0.02) | -132.4565973 (0.05) | -132.356 (0.02) | -132.4565973 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 13.46 | ||||||||||||
| V magnitude | |||||||||||||
| R magnitude | 13.90 | ||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 14.11 (0.03) | ||||||||||||
| H magnitude | 14.23 (0.04) | ||||||||||||
| K magnitude | 14.36 (0.08) | ||||||||||||
| u magnitude | |||||||||||||
| g magnitude | |||||||||||||
| r magnitude | |||||||||||||
| i magnitude | |||||||||||||
| z magnitude | |||||||||||||
| G magnitude | 13.58 (0.0009) | 13.60 | 13.58 | 13.58 (0.003) | 13.60 | ||||||||
| BP magnitude | 13.49 (0.0009) | 13.46 | 13.46 | ||||||||||
| RP magnitude | 13.78 (0.0007) | 13.79 | 13.79 | ||||||||||
| Pan g magnitude | 13.45 (0.03) | ||||||||||||
| Pan r magnitude | 13.81 (0.01) | ||||||||||||
| Pan i magnitude | 14.17 (0.003) | ||||||||||||
| Pan z magnitude | 14.39 (0.001) | ||||||||||||
| Pan y magnitude | 14.57 (0.004) | ||||||||||||
| E(B-V) | 0.004 | ||||||||||||
* Constant surface field
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