SDSS J084732.40+400059.6
All names: SDSS J084732.40+400059.6, Gaia DR2 912298985505940608, Gaia DR3 912298985505940608, SDSS J084732.41+400059.7, SDSS J084732.41+400059.6, Gaia EDR3 912298985505940608, GALEX J084732.2+400059, WD 0844+402
| 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 47 32.40 (0.1) | 08 47 32.40 | 08 47 32.40 (0.2) | 08 47 32.40 | 08 47 32.41 (0.1) | 08 47 32.41 | 08 47 31.90 | 08 47 32.41 | ||||||
| Declination | 40 00 59.65 (0.1) | 40 00 59.67 | 40 00 59.66 (0.1) | 40 00 59.65 | 40 00 59.70 (0.1) | 40 00 59.67 | 40 00 56.52 | 40 00 59.67 | ||||||
| Spectral type | DA | DA | DA | DA | DA_auto | DA | DA | DA | ||||||
| Effective temperature | [K] | 9858.0 | 10330.0 (70) | 10351.0 (249) | 10225.0 (50) | 10236.0 (58) | ||||||||
| log(g) | [cgs] | 7.45 | 8.54 (0.07) | 7.56 (0.06) | 8.48 (0.06) | 8.52 (0.06) | ||||||||
| Mass | [M☉] | 0.339 | 0.95 (0.04) | 0.38 (0.04) | 0.918 (0.04) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 0.3565 | 1.4791 | |||||||||||
| 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] | 3.89 (0.2) | 3.94 (0.3) | 3.89 | 3.89 (0.2) | |||||||||
| Distance | [pc] | 257.37 (11) | 253.74 (16) | 257.37 | 257.37 (11) | |||||||||
| Composition | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -6.631281077 (0.2) | -6.610575308 (0.3) | -6.631 (0.2) | 5.2 | |||||||||
| Proper motion (declination) | [mas/yr] | -3.115335004 (0.1) | -3.253353576 (0.2) | -3.115 (0.1) | -3.3 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | ||||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | ||||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | ||||||||||||||
| H magnitude | ||||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 18.79 (0.02) | 18.79 (0.02) | 18.78 (0.03) | 18.78 | 18.79 (0.03) | |||||||||
| g magnitude | 18.46 (0.007) | 18.45 (0.007) | 18.46 (0.01) | 18.46 | 18.47 (0.02) | |||||||||
| r magnitude | 18.50 (0.009) | 18.50 (0.009) | 18.52 (0.01) | 18.51 | 18.52 (0.01) | |||||||||
| i magnitude | 18.62 (0.01) | 18.62 (0.01) | 18.64 (0.02) | 18.63 | 18.63 (0.02) | |||||||||
| z magnitude | 18.82 (0.04) | 18.82 (0.04) | 18.86 (0.04) | 18.85 | 18.83 (0.04) | |||||||||
| G magnitude | 18.50 (0.02) | 18.53 | 18.50 | 18.50 (0.003) | ||||||||||
| BP magnitude | 18.56 (0.02) | 18.56 | ||||||||||||
| RP magnitude | 18.48 (0.02) | 18.40 | ||||||||||||
| Pan g magnitude | 18.47 (0.02) | |||||||||||||
| Pan r magnitude | 18.55 (0.009) | |||||||||||||
| Pan i magnitude | 18.73 (0.007) | |||||||||||||
| Pan z magnitude | 18.89 (0.01) | |||||||||||||
| Pan y magnitude | 18.93 (0.03) | |||||||||||||
| E(B-V) | 0.015 | |||||||||||||
* Constant surface field
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