SDSS J084446.27+484452.9
All names: Gaia EDR3 1015075078998501376, GALEX J084446.3+484453, SDSS J084446.29+484452.9, WD 0841+489, Gaia DR3 1015075078998501376, SDSS J084446.27+484452.9, SDSS J084446.29+484453.0, Gaia DR2 1015075078998501376
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | 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 44 46.28 (0.2) | 08 44 46.28 | 08 44 46.28 (0.3) | 08 44 46.28 | 08 44 46.28 (0.2) | 08 44 46.28 | 08 44 45.62 | 08 44 46.29 | |||||
| Declination | 48 44 52.60 (0.2) | 48 44 52.92 | 48 44 52.61 (0.2) | 48 44 52.60 | 48 44 52.96 (0.2) | 48 44 52.97 | 48 44 47.76 | 48 44 52.97 | |||||
| Spectral type | DA: | DA | DA | DA: | DA: | DA | DA | ||||||
| Effective temperature | [K] | 6876.0 | 6856.0 (254) | 7588.0 (69) | 6987.0 (69) | ||||||||
| log(g) | [cgs] | 8.07 | 8.05 (0.08) | 8.89 (0.1) | 8.04 (0.2) | ||||||||
| Mass | [M☉] | 0.634 | 0.621 (0.07) | 0.615 (0.09) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 1.7710 | |||||||||||
| 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] | 7.71 (0.3) | 7.63 (0.4) | 7.71 | 7.71 (0.3) | ||||||||
| Distance | [pc] | 129.66 (5) | 131.04 (7) | 129.66 | 129.66 (5) | ||||||||
| Composition | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 2.937496961 (0.3) | 3.554354975 (0.6) | 2.937 (0.3) | 4.2 | ||||||||
| Proper motion (declination) | [mas/yr] | -22.64531144 (0.2) | -22.19109775 (0.5) | -22.645 (0.2) | -25.6 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | |||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 19.94 (0.03) | 19.94 (0.03) | 19.93 (0.04) | 19.93 | 19.93 (0.04) | ||||||||
| g magnitude | 19.41 (0.01) | 19.41 (0.01) | 19.42 (0.02) | 19.42 | 19.41 (0.02) | ||||||||
| r magnitude | 19.20 (0.01) | 19.20 (0.01) | 19.23 (0.02) | 19.22 | 19.20 (0.02) | ||||||||
| i magnitude | 19.16 (0.02) | 19.16 (0.01) | 19.17 (0.02) | 19.16 | 19.15 (0.02) | ||||||||
| z magnitude | 19.24 (0.06) | 19.23 (0.06) | 19.27 (0.06) | 19.26 | 19.24 (0.06) | ||||||||
| G magnitude | 19.19 (0.03) | 19.22 | 19.19 | 19.19 (0.004) | |||||||||
| BP magnitude | 19.42 (0.03) | 19.45 | |||||||||||
| RP magnitude | 18.85 (0.04) | 18.97 | |||||||||||
| Pan g magnitude | 19.37 (0.01) | ||||||||||||
| Pan r magnitude | 19.21 (0.02) | ||||||||||||
| Pan i magnitude | 19.17 (0.01) | ||||||||||||
| Pan z magnitude | 19.20 (0.02) | ||||||||||||
| Pan y magnitude | 19.19 (0.04) | ||||||||||||
| E(B-V) | 0.005 | ||||||||||||
* Constant surface field
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