WD 0834+487
All names: WD 0834+487, SDSS J083830.80+483453.5, GALEX J083830.8+483453, SDSS J083830.80+483453.6, SDSS J083830.81+483453.5, Gaia EDR3 1014835694701094656, Gaia DR2 1014835694701094656, Gaia DR3 1014835694701094656
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Kleinman et al. 2004 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 38 30.78 (0.3) | 08 38 30.81 | 08 38 30.78 (0.4) | 08 38 30.82 (0.3) | 08 38 30.81 | 08 38 29.62 | 08 38 30.80 | 08 38 30.80 | |||||
| Declination | 48 34 52.97 (0.2) | 48 34 53.57 | 48 34 52.99 (0.4) | 48 34 53.70 (0.2) | 48 34 53.59 | 48 34 50.88 | 48 34 53.64 | 48 34 53.65 | |||||
| Spectral type | DA | DA | DA | DA2.8 | DA | DA | |||||||
| Effective temperature | [K] | 14086.0 | 17690.0 (348) | 17891.0 (375) | 17697.0 (354) | ||||||||
| log(g) | [cgs] | 7.20 | 7.96 (0.07) | 7.96 (0.08) | 7.97 (0.07) | ||||||||
| Mass | [M☉] | 0.282 | 0.597 (0.04) | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.1026 | |||||||||||
| 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] | 1.31 (0.4) | 1.35 (0.5) | 1.31 (0.4) | |||||||||
| Distance | [pc] | 764.40 (209) | 739.66 (265) | 764.41 (209) | |||||||||
| Composition | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -22.79196291 (0.3) | -20.93194923 (0.8) | -22.792 (0.3) | -23.3 | -23.0 | |||||||
| Proper motion (declination) | [mas/yr] | -45.44572941 (0.3) | -46.46435498 (0.9) | -45.446 (0.3) | -48.0 | -47.0 | |||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | |||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 19.68 (0.03) | 19.68 (0.03) | 19.66 (0.03) | 19.68 | 19.67 (0.03) | 19.68 (0.04) | |||||||
| g magnitude | 19.46 (0.01) | 19.46 (0.01) | 19.48 (0.02) | 19.50 | 19.47 (0.02) | 19.50 (0.02) | |||||||
| r magnitude | 19.75 (0.02) | 19.75 (0.02) | 19.73 (0.02) | 19.73 | 19.74 (0.02) | 19.73 (0.02) | |||||||
| i magnitude | 20.08 (0.03) | 20.08 (0.03) | 20.06 (0.04) | 20.06 | 20.06 (0.04) | 20.06 (0.04) | |||||||
| z magnitude | 20.62 (0.2) | 20.62 (0.2) | 20.64 (0.2) | 20.61 | 20.64 (0.2) | 20.61 (0.2) | |||||||
| G magnitude | 19.61 (0.05) | 19.66 | 19.61 (0.004) | ||||||||||
| BP magnitude | 19.70 (0.05) | 19.61 | |||||||||||
| RP magnitude | 19.71 (0.08) | 19.76 | |||||||||||
| Pan g magnitude | 19.47 (0.01) | ||||||||||||
| Pan r magnitude | 19.80 (0.03) | ||||||||||||
| Pan i magnitude | 20.06 (0.01) | ||||||||||||
| Pan z magnitude | 20.24 (0.04) | ||||||||||||
| Pan y magnitude | 18.85 (0.1) | ||||||||||||
| E(B-V) | 0.025 | ||||||||||||
* Constant surface field
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