SDSS J082239.54+304857.2
All names: Gaia EDR3 708665755549775872, WD 0819+309, Gaia DR3 708665755549775872, SDSS J082239.54+304857.1, SDSS J082239.55+304857.3, Gaia DR2 708665755549775872, GALEX J082239.5+304857, SDSS J082239.54+304857.2
| 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 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 22 39.54 (0.7) | 08 22 39.55 | 08 22 39.54 (1) | 08 22 39.54 (0.7) | 08 22 39.54 | 08 22 39.38 | 08 22 39.55 | |||||
| Declination | 30 48 56.83 (0.5) | 30 48 57.19 | 30 48 56.84 (0.8) | 30 48 57.25 (0.5) | 30 48 57.24 | 30 48 51.12 | 30 48 57.26 | |||||
| Spectral type | DA | DA | DA: | DA: | DA | DA | ||||||
| Effective temperature | [K] | 14986.0 | 14161.0 (720) | 14347.0 (666) | ||||||||
| log(g) | [cgs] | 7.11 | 6.37 (0.2) | 6.48 (0.2) | ||||||||
| Mass | [M☉] | 0.266 | 0.219 (0.003) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.0762 | ||||||||||
| 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] | 1.14 (0.9) | 0.88 (1) | 1.14 (0.9) | ||||||||
| Distance | [pc] | 880.52 (672) | 1130.30 (1902) | 880.51 (672) | ||||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -6.987265166 (0.9) | -7.151457454 (2) | -6.987 (0.9) | -0.5 | |||||||
| Proper motion (declination) | [mas/yr] | -26.38791151 (0.5) | -26.17352458 (2) | -26.388 (0.5) | -31.9 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 20.80 (0.07) | 20.79 (0.07) | 20.77 (0.07) | 20.76 | 20.76 (0.07) | |||||||
| g magnitude | 20.34 (0.02) | 20.34 (0.02) | 20.34 (0.02) | 20.33 | 20.33 (0.02) | |||||||
| r magnitude | 20.44 (0.03) | 20.44 (0.03) | 20.44 (0.03) | 20.43 | 20.44 (0.03) | |||||||
| i magnitude | 20.69 (0.05) | 20.69 (0.05) | 20.69 (0.05) | 20.69 | 20.69 (0.05) | |||||||
| z magnitude | 21.12 (0.3) | 21.02 (0.2) | 21.05 (0.2) | 21.05 | 21.05 (0.2) | |||||||
| G magnitude | 20.38 (0.08) | 20.45 | 20.38 (0.008) | |||||||||
| BP magnitude | 20.47 (0.08) | 20.28 | ||||||||||
| RP magnitude | 20.34 (0.1) | 20.48 | ||||||||||
| Pan g magnitude | 20.28 (0.02) | |||||||||||
| Pan r magnitude | 20.48 (0.02) | |||||||||||
| Pan i magnitude | 20.74 (0.04) | |||||||||||
| Pan z magnitude | 20.83 (0.08) | |||||||||||
| Pan y magnitude | ||||||||||||
| E(B-V) | 0.027 | |||||||||||
* Constant surface field
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