WD 0812+458
All names: Gaia DR2 928804888422084992, SDSS J081546.90+454027.4, WD 0812+458, SDSS J081546.91+454027.4, SDSS J081546.91+454027.5, Gaia EDR3 928804888422084992, GALEX J081546.9+454028, Gaia DR3 928804888422084992
| 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 15 46.90 (0.5) | 08 15 46.91 | 08 15 46.90 (0.6) | 08 15 46.91 (0.5) | 08 15 46.91 | 08 15 45.94 | 08 15 46.91 | 08 15 46.91 | |||||
| Declination | 45 40 27.32 (0.4) | 45 40 27.42 | 45 40 27.32 (0.6) | 45 40 27.40 (0.4) | 45 40 27.47 | 45 40 22.80 | 45 40 27.46 | 45 40 27.44 | |||||
| Spectral type | DA | DA | DA | DA2.1 | DA | DA | |||||||
| Effective temperature | [K] | 24527.0 | 23989.0 (765) | 23977.0 (707) | 23920.0 (761) | ||||||||
| log(g) | [cgs] | 8.07 | 7.86 (0.1) | 7.84 (0.1) | 7.88 (0.1) | ||||||||
| Mass | [M☉] | 0.675 | 0.555 (0.06) | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.0302 | |||||||||||
| 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] | 1.97 (0.6) | 1.43 (0.9) | 1.97 (0.6) | |||||||||
| Distance | [pc] | 507.11 (160) | 701.54 (448) | 507.10 (160) | |||||||||
| Composition | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -5.285366046 (0.5) | -7.924668633 (1) | -5.285 (0.5) | -4.9 | -5.0 | |||||||
| Proper motion (declination) | [mas/yr] | -5.357870582 (0.4) | -6.290205607 (1) | -5.358 (0.4) | -9.0 | -7.0 | |||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | |||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 19.91 (0.03) | 19.91 (0.03) | 19.87 (0.03) | 19.89 | 19.90 (0.03) | 19.89 (0.03) | |||||||
| g magnitude | 19.80 (0.01) | 19.80 (0.01) | 19.82 (0.02) | 19.83 | 19.84 (0.02) | 19.83 (0.02) | |||||||
| r magnitude | 20.12 (0.02) | 20.12 (0.02) | 20.16 (0.02) | 20.16 | 20.15 (0.02) | 20.16 (0.02) | |||||||
| i magnitude | 20.41 (0.04) | 20.41 (0.04) | 20.43 (0.04) | 20.44 | 20.43 (0.04) | 20.44 (0.04) | |||||||
| z magnitude | 20.68 (0.2) | 20.68 (0.2) | 20.66 (0.2) | 20.65 | 20.66 (0.2) | 20.65 (0.2) | |||||||
| G magnitude | 19.96 (0.07) | 20.03 | 19.96 (0.006) | ||||||||||
| BP magnitude | 19.99 (0.07) | 19.89 | |||||||||||
| RP magnitude | 20.26 (0.09) | 20.03 | |||||||||||
| Pan g magnitude | 19.84 (0.02) | ||||||||||||
| Pan r magnitude | 20.14 (0.02) | ||||||||||||
| Pan i magnitude | 20.40 (0.02) | ||||||||||||
| Pan z magnitude | 20.53 (0.07) | ||||||||||||
| Pan y magnitude | |||||||||||||
| E(B-V) | 0.036 | ||||||||||||
* Constant surface field
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