SDSS J081814.99+073404.1
All names: GALEX J081815.0+073404, SDSS J081814.99+073404.1, SDSS J081814.99+073404.2, Gaia EDR3 3097191592496028928, Gaia DR3 3097191592496028928, WD 0815+077, Gaia DR2 3097191592496028928
| Parameter | Unit | Gaia EDR3 | 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 18 14.96 (0.3) | 08 18 14.99 | 08 18 14.96 (0.4) | 08 18 15.00 (0.3) | 08 18 14.99 | 08 18 15.14 | 08 18 14.99 | ||||
| Declination | 07 34 04.08 (0.2) | 07 34 04.19 | 07 34 04.08 (0.3) | 07 34 04.19 (0.2) | 07 34 04.18 | 07 34 00.12 | 07 34 04.18 | ||||
| Spectral type | DA | DA | DA_auto | DA | DA | DA | |||||
| Effective temperature | [K] | 14998.0 | 13010.0 (296) | 12828.0 (333) | |||||||
| log(g) | [cgs] | 8.51 | 7.84 (0.09) | 7.90 (0.1) | |||||||
| Mass | [M☉] | 0.932 | 0.555 (0.05) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.4512 | |||||||||
| 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] | 3.15 (0.4) | 3.37 (0.5) | 3.15 (0.4) | |||||||
| Distance | [pc] | 317.72 (38) | 296.33 (46) | 317.72 (38) | |||||||
| Composition | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -32.20580968 (0.4) | -31.35134286 (0.9) | -32.206 (0.4) | |||||||
| Proper motion (declination) | [mas/yr] | -7.145498181 (0.3) | -7.523891005 (0.5) | -7.145 (0.3) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 19.81 (0.03) | 19.81 (0.03) | 19.86 (0.04) | 19.86 | 19.84 (0.04) | ||||||
| g magnitude | 19.38 (0.01) | 19.39 (0.01) | 19.40 (0.02) | 19.40 | 19.39 (0.02) | ||||||
| r magnitude | 19.60 (0.01) | 19.60 (0.01) | 19.64 (0.02) | 19.64 | 19.61 (0.02) | ||||||
| i magnitude | 19.82 (0.02) | 19.82 (0.02) | 19.85 (0.03) | 19.85 | 19.82 (0.03) | ||||||
| z magnitude | 20.17 (0.1) | 20.17 (0.1) | 20.18 (0.1) | 20.19 | 20.14 (0.1) | ||||||
| G magnitude | 19.49 (0.04) | 19.52 | 19.49 (0.005) | ||||||||
| BP magnitude | 19.54 (0.04) | 19.48 | |||||||||
| RP magnitude | 19.54 (0.08) | 19.57 | |||||||||
| Pan g magnitude | |||||||||||
| Pan r magnitude | |||||||||||
| Pan i magnitude | |||||||||||
| Pan z magnitude | |||||||||||
| Pan y magnitude | |||||||||||
| E(B-V) | 0.016 | ||||||||||
* Constant surface field
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