USNO-A2.0 1125-05599126
All names: SDSS J082151.33+244943.6, Gaia EDR3 679160601536162816, SDSS J082151.33+244943.5, GALEX J082151.3+244943, Gaia DR3 679160601536162816, SDSS J082151.32+244943.5, WD 0818+249, Gaia DR2 679160601536162816, USNO-A2.0 1125-05599126
| 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 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 21 51.31 (0.3) | 08 21 51.33 | 08 21 51.31 (0.4) | 08 21 51.33 (0.3) | 08 21 51.33 | 08 21 51.12 | 08 21 51.33 | |||||
| Declination | 24 49 43.27 (0.2) | 24 49 43.54 | 24 49 43.28 (0.2) | 24 49 43.59 (0.2) | 24 49 43.57 | 24 49 41.88 | 24 49 43.56 | |||||
| Spectral type | DA | DA | DA_auto | DA | DA | DA | ||||||
| Effective temperature | [K] | 10912.0 | 12647.0 (387) | 12509.0 (432) | ||||||||
| log(g) | [cgs] | 8.46 | 8.28 (0.1) | 8.47 (0.1) | ||||||||
| Mass | [M☉] | 0.893 | 0.889 (0.07) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.9598 | ||||||||||
| 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] | 3.75 (0.4) | 3.87 (0.5) | 3.75 (0.4) | ||||||||
| Distance | [pc] | 266.56 (25) | 258.60 (33) | 266.55 (25) | ||||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -13.61739932 (0.4) | -13.7059282 (0.8) | -13.617 (0.4) | -11.4 | |||||||
| Proper motion (declination) | [mas/yr] | -19.98833187 (0.3) | -19.77318085 (0.5) | -19.988 (0.3) | -26.9 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | 19.20 (0.3) | |||||||||||
| V magnitude | ||||||||||||
| R magnitude | 19.10 (0.3) | |||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 20.00 (0.04) | 20.00 (0.04) | 20.02 (0.04) | 20.02 | 20.04 (0.04) | |||||||
| g magnitude | 19.57 (0.01) | 19.57 (0.01) | 19.59 (0.02) | 19.58 | 19.60 (0.02) | |||||||
| r magnitude | 19.76 (0.02) | 19.76 (0.02) | 19.77 (0.02) | 19.77 | 19.78 (0.02) | |||||||
| i magnitude | 19.93 (0.03) | 19.93 (0.03) | 19.94 (0.03) | 19.94 | 19.96 (0.03) | |||||||
| z magnitude | 20.38 (0.2) | 20.38 (0.2) | 20.35 (0.1) | 20.35 | 20.36 (0.1) | |||||||
| G magnitude | 19.69 (0.05) | 19.74 | 19.69 (0.005) | |||||||||
| BP magnitude | 19.74 (0.05) | 19.75 | ||||||||||
| RP magnitude | 19.79 (0.09) | 19.73 | ||||||||||
| Pan g magnitude | 19.61 (0.02) | |||||||||||
| Pan r magnitude | 19.84 (0.01) | |||||||||||
| Pan i magnitude | 20.01 (0.02) | |||||||||||
| Pan z magnitude | 20.25 (0.06) | |||||||||||
| Pan y magnitude | 20.18 (0.02) | |||||||||||
| E(B-V) | 0.013 | |||||||||||
* Constant surface field
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