GD 446
All names: WD 0658+624, GD 446, 2MASS J07032608+6222517, Gaia EDR3 1099325161772414208, GALEX J070325.9+622250, Gaia DR3 1099325161772414208, USNO-B1.0 1523-00189417, GEN# +6.10060446, WD 0658+62, LSPM J0703+6222, Gaia DR2 1099325161772414208, WDJ070326.09+622251.24, TIC 88484968
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD H | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 03 25.83 (0.02) | 07 03 25.84 (0.03) | 07 03 25.83 | 07 03 26.09 (0.02) | 07 03 25.84 | 07 03 26.09 | |||||
| Declination | 62 22 47.91 (0.02) | 62 22 48.02 (0.03) | 62 22 47.91 | 62 22 51.24 (0.02) | 62 22 48.02 | 62 22 53.76 | |||||
| Spectral type | DA | DA | DA | DA2.9 | DA4 | ||||||
| Effective temperature | [K] | 15816.0 | 17140.0 (262) | 16564.0 (171) | |||||||
| log(g) | [cgs] | 7.91 | 7.98 (0.05) | 7.98 (0.01) | |||||||
| Mass | [M☉] | 0.567 | 0.6 (0.03) | 0.603 (0.008) | |||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.1439 | |||||||||
| 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] | 12.24 (0.03) | 12.19 (0.05) | 12.24 | 12.24 (0.03) | 12.19 (0.05) | |||||
| Distance | [pc] | 81.71 (0.2) | 82.01 (0.4) | 81.00 | 81.71 | 81.71 (0.2) | 82.01 (0.4) | ||||
| Composition | H | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -110.7215033 (0.03) | -110.7289728 (0.07) | -110.722 (0.03) | -110.7289728 | ||||||
| Proper motion (declination) | [mas/yr] | -208.158124 (0.03) | -208.1698536 (0.07) | -208.158 (0.03) | -208.1698536 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 15.61 | ||||||||||
| V magnitude | |||||||||||
| R magnitude | 15.60 | ||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.07 (0.09) | ||||||||||
| H magnitude | 16.03 (0.2) | ||||||||||
| K magnitude | |||||||||||
| u magnitude | |||||||||||
| g magnitude | |||||||||||
| r magnitude | |||||||||||
| i magnitude | |||||||||||
| z magnitude | |||||||||||
| G magnitude | 15.65 (0.002) | 15.67 | 15.65 | 15.65 (0.003) | 15.67 | ||||||
| BP magnitude | 15.61 (0.002) | 15.59 | 15.59 | ||||||||
| RP magnitude | 15.79 (0.002) | 15.80 | 15.80 | ||||||||
| Pan g magnitude | 15.52 (0.004) | ||||||||||
| Pan r magnitude | 15.81 (0.002) | ||||||||||
| Pan i magnitude | 16.10 (0.003) | ||||||||||
| Pan z magnitude | 16.35 (0.001) | ||||||||||
| Pan y magnitude | 16.50 (0.005) | ||||||||||
| E(B-V) | 0.003 | ||||||||||
* Constant surface field
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