WD 0847+182
All names: SDSS J085006.99+180532.78, USNO-B1.0 1080-00203933, GALEX J085007.0+180532, SDSS J085006.99+180532.7, WD 0847+182, Gaia DR3 659995357950262912, SDSS J085006.98+180533.0, Gaia EDR3 659995357950262912, Gaia DR2 659995357950262912
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Kepler et al. 2015 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 50 06.98 (0.2) | 08 50 06.98 | 08 50 06.98 (0.3) | 08 50 06.98 | 08 50 06.98 (0.2) | 08 50 06.00 | |||||||
| Declination | 18 05 32.56 (0.1) | 18 05 33.05 | 18 05 32.58 (0.1) | 18 05 32.56 | 18 05 33.25 (0.1) | 18 05 35.16 | |||||||
| Spectral type | DX | DX | DX | DC | DC | ? | DC | ||||||
| Effective temperature | [K] | 10026.0 | 10008.0 | 10349.0 (179) | 10235.0 (525) | ||||||||
| log(g) | [cgs] | 8.13 | 8.06 | 8.72 (0.5) | 8.04 (0.1) | ||||||||
| Mass | [M☉] | 0.677 | 0.615 | 0.604 (0.09) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.7181 | 0.6757 | ||||||||||
| log(H/He) | |||||||||||||
| log(C/He) | |||||||||||||
| log(Ca/He) | |||||||||||||
| log(Ca/H) | |||||||||||||
| Parallax | [mas] | 4.62 (0.2) | 4.72 (0.3) | 4.62 | 4.62 (0.2) | ||||||||
| Distance | [pc] | 216.34 (11) | 212.08 (13) | 216.34 | 216.34 (11) | ||||||||
| Composition | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | 4.899253431 (0.2) | 4.656046034 (0.5) | 4.899 (0.2) | |||||||||
| Proper motion (declination) | [mas/yr] | -43.2275454 (0.2) | -42.81748847 (0.3) | -43.228 (0.2) | |||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 19.30 | ||||||||||||
| V magnitude | |||||||||||||
| R magnitude | 18.80 | ||||||||||||
| I magnitude | |||||||||||||
| J magnitude | |||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 19.15 (0.02) | 19.16 (0.03) | 19.15 (0.02) | ||||||||||
| g magnitude | 18.99 (0.009) | 19.01 (0.02) | 18.99 (0.009) | ||||||||||
| r magnitude | 19.08 (0.01) | 19.09 (0.01) | 19.08 (0.01) | ||||||||||
| i magnitude | 19.20 (0.02) | 19.22 (0.02) | 19.20 (0.02) | ||||||||||
| z magnitude | 19.35 (0.06) | 19.37 (0.06) | 19.35 (0.06) | ||||||||||
| G magnitude | 18.97 (0.03) | 19.01 | 18.97 | 18.97 (0.003) | |||||||||
| BP magnitude | 19.01 (0.03) | 18.97 | |||||||||||
| RP magnitude | 18.95 (0.04) | 18.81 | |||||||||||
| Pan g magnitude | 18.99 (0.007) | ||||||||||||
| Pan r magnitude | 19.06 (0.005) | ||||||||||||
| Pan i magnitude | 19.20 (0.01) | ||||||||||||
| Pan z magnitude | 19.39 (0.01) | ||||||||||||
| Pan y magnitude | 19.40 (0.1) | ||||||||||||
| E(B-V) | 0.012 | ||||||||||||
* Constant surface field
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