SDSS J082945.64+053458.7
All names: SDSS J082945.65+053458.7, SDSS J082945.64+053458.6, SDSS J082945.64+053458.7, Gaia DR2 3093559939948809216, SDSS J082945.64+053458.4, Gaia EDR3 3093559939948809216, Gaia DR3 3093559939948809216, SDSS J082945.65+053458.4, WD 0827+057, GALEX J082945.6+053457
| 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 29 45.65 (0.2) | 08 29 45.64 | 08 29 45.65 (0.3) | 08 29 45.65 | 08 29 45.64 (0.2) | 08 29 45.65 | 08 29 45.02 | 08 29 45.65 | ||||||
| Declination | 05 34 58.20 (0.2) | 05 34 58.69 | 05 34 58.21 (0.2) | 05 34 58.20 | 05 34 58.72 (0.2) | 05 34 58.71 | 05 34 55.56 | 05 34 58.73 | ||||||
| Spectral type | DA | DA | DA | DA | DA_auto | DA | DA | DA | ||||||
| Effective temperature | [K] | 16175.0 | 16950.0 (460) | 15130.0 (1068) | 16530.0 (239) | 16856.0 (259) | ||||||||
| log(g) | [cgs] | 8.36 | 8.04 (0.08) | 8.14 (0.1) | 8.06 (0.05) | 8.09 (0.06) | ||||||||
| Mass | [M☉] | 0.835 | 0.64 (0.05) | 0.696 (0.08) | 0.664 (0.04) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 0.2819 | 0.1549 | |||||||||||
| 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] | 3.65 (0.3) | 4.05 (0.4) | 3.65 | 3.65 (0.3) | |||||||||
| Distance | [pc] | 273.67 (19) | 246.80 (24) | 273.67 | 273.67 (19) | |||||||||
| Composition | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 5.680086095 (0.2) | 6.357261801 (0.6) | 5.68 (0.2) | -2.0 | |||||||||
| Proper motion (declination) | [mas/yr] | -33.05910421 (0.2) | -32.86412284 (0.4) | -33.059 (0.2) | -31.5 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | ||||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | ||||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | ||||||||||||||
| H magnitude | ||||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 18.79 (0.02) | 18.79 (0.02) | 18.81 (0.02) | 18.80 | 18.79 (0.02) | |||||||||
| g magnitude | 18.53 (0.007) | 18.53 (0.007) | 18.58 (0.01) | 18.57 | 18.56 (0.01) | |||||||||
| r magnitude | 18.87 (0.01) | 18.88 (0.01) | 18.99 (0.02) | 18.98 | 18.97 (0.02) | |||||||||
| i magnitude | 19.02 (0.02) | 19.02 (0.02) | 19.10 (0.02) | 19.10 | 19.07 (0.02) | |||||||||
| z magnitude | 19.41 (0.09) | 19.41 (0.09) | 19.50 (0.09) | 19.50 | 19.47 (0.09) | |||||||||
| G magnitude | 18.70 (0.02) | 18.74 | 18.70 | 18.70 (0.004) | ||||||||||
| BP magnitude | 18.69 (0.02) | 18.70 | ||||||||||||
| RP magnitude | 18.82 (0.05) | 18.79 | ||||||||||||
| Pan g magnitude | 18.55 (0.005) | |||||||||||||
| Pan r magnitude | 18.86 (0.009) | |||||||||||||
| Pan i magnitude | 19.13 (0.005) | |||||||||||||
| Pan z magnitude | 19.35 (0.02) | |||||||||||||
| Pan y magnitude | 19.55 (0.03) | |||||||||||||
| E(B-V) | 0.017 | |||||||||||||
* Constant surface field
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