SDSS J081255.14+253246.7
All names: WD 0809+256, Gaia EDR3 682587298243753600, GALEX J081255.1+253247, Gaia DR3 682587298243753600, SDSS J081255.15+253246.7, SDSS J081255.15+253246.8, Gaia DR2 682587298243753600, SDSS J081255.14+253246.7
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Tremblay et al. 2011 | Vincent et al. 2024 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 12 55.12 (0.2) | 08 12 55.15 | 08 12 55.12 (0.2) | 08 12 55.12 | 08 12 55.15 (0.2) | 08 12 55.15 | 08 12 54.65 | 08 12 55.15 | ||||||
| Declination | 25 32 46.09 (0.1) | 25 32 46.75 | 25 32 46.11 (0.1) | 25 32 46.09 | 25 32 46.91 (0.1) | 25 32 46.75 | 25 32 44.52 | 25 32 46.75 | ||||||
| Spectral type | DA | DA | DA | DA | DA_auto | DA | DA | DA | ||||||
| Effective temperature | [K] | 10586.0 | 11020.0 (140) | 11000.0 (505) | 10827.0 (91) | 10735.0 (94) | ||||||||
| log(g) | [cgs] | 7.80 | 8.23 (0.08) | 7.90 (0.08) | 8.18 (0.07) | 8.15 (0.08) | ||||||||
| Mass | [M☉] | 0.493 | 0.74 (0.05) | 0.546 (0.06) | 0.688 (0.05) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 0.4087 | 0.6761 | |||||||||||
| 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] | 4.47 (0.2) | 4.40 (0.3) | 4.47 | 4.47 (0.2) | |||||||||
| Distance | [pc] | 223.76 (10) | 227.10 (15) | 223.76 | 223.75 (10) | |||||||||
| Composition | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -30.77822336 (0.2) | -29.99691639 (0.4) | -30.778 (0.2) | ||||||||||
| Proper motion (declination) | [mas/yr] | -51.15503671 (0.1) | -51.22658759 (0.3) | -51.155 (0.1) | ||||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | ||||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | ||||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | 18.61 (0.06) | |||||||||||||
| H magnitude | 18.40 (0.1) | |||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 18.95 (0.02) | 18.95 (0.02) | 19.02 (0.03) | 18.49 | 18.99 (0.03) | |||||||||
| g magnitude | 18.46 (0.007) | 18.47 (0.007) | 18.50 (0.01) | 18.49 | 18.48 (0.01) | |||||||||
| r magnitude | 18.57 (0.009) | 18.57 (0.009) | 18.59 (0.02) | 18.58 (0.02) | ||||||||||
| i magnitude | 18.74 (0.01) | 18.74 (0.01) | 18.76 (0.02) | 18.75 (0.02) | ||||||||||
| z magnitude | 19.00 (0.05) | 19.00 (0.05) | 18.99 (0.05) | 18.98 (0.05) | ||||||||||
| G magnitude | 18.50 (0.02) | 18.54 | 18.50 | 18.50 (0.004) | ||||||||||
| BP magnitude | 18.54 (0.02) | 18.52 | ||||||||||||
| RP magnitude | 18.48 (0.03) | 18.41 | ||||||||||||
| Pan g magnitude | 18.45 (0.004) | |||||||||||||
| Pan r magnitude | 18.60 (0.004) | |||||||||||||
| Pan i magnitude | 18.76 (0.006) | |||||||||||||
| Pan z magnitude | 18.95 (0.01) | |||||||||||||
| Pan y magnitude | 19.06 (0.03) | |||||||||||||
| E(B-V) | 0.011 | |||||||||||||
* Constant surface field
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