WD 0827+447
All names: SDSS J083035.63+443249.7, Gaia DR2 917727480570752896, Gaia EDR3 917727480570752896, GALEX J083035.6+443249, SDSS J083035.62+443249.7, SDSS J083035.62+443249.6, Gaia DR3 917727480570752896, WD 0827+447, SDSS J083035.62+443249.5, SDSS J083035.61+443249.6
| 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 | Kleinman et al. 2004 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 30 35.60 (0.2) | 08 30 35.62 | 08 30 35.60 (0.2) | 08 30 35.60 | 08 30 35.62 (0.2) | 08 30 35.63 | 08 30 35.26 | 08 30 35.63 | 08 30 35.63 | ||||||
| Declination | 44 32 48.71 (0.1) | 44 32 49.62 | 44 32 48.74 (0.1) | 44 32 48.71 | 44 32 49.64 (0.1) | 44 32 49.57 | 44 32 47.76 | 44 32 49.70 | 44 32 49.70 | ||||||
| Spectral type | DA | DA | DA | DA | DA | DA6.5 | DA | DA | |||||||
| Effective temperature | [K] | 7127.0 | 7250.0 (100) | 7391.0 (221) | 7719.0 (56) | 7144.0 (51) | 7784.0 (44) | ||||||||
| log(g) | [cgs] | 7.99 | 8.15 (0.2) | 8.09 (0.06) | 8.67 (0.2) | 7.90 (0.1) | 8.94 (0.07) | ||||||||
| Mass | [M☉] | 0.584 | 0.69 (0.1) | 0.645 (0.06) | 0.54 (0.05) | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||||
| Cooling age | [Gyr] | 1.4270 | 1.8197 | ||||||||||||
| 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] | 8.08 (0.2) | 8.06 (0.3) | 8.08 | 8.08 (0.2) | ||||||||||
| Distance | [pc] | 123.72 (3) | 124.01 (4) | 123.72 | 123.72 (3) | ||||||||||
| Composition | H | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -17.07957438 (0.2) | -16.65964416 (0.4) | -17.08 (0.2) | -17.3 | -18.0 | |||||||||
| Proper motion (declination) | [mas/yr] | -58.33947131 (0.2) | -58.62115039 (0.3) | -58.339 (0.2) | -58.6 | -57.0 | |||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | |||||||||||||||
| B magnitude | |||||||||||||||
| V magnitude | |||||||||||||||
| R magnitude | |||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | |||||||||||||||
| H magnitude | |||||||||||||||
| K magnitude | |||||||||||||||
| u magnitude | 19.55 (0.02) | 19.55 (0.03) | 19.53 (0.03) | 19.54 | 19.56 (0.03) | 19.54 (0.03) | |||||||||
| g magnitude | 19.02 (0.009) | 19.02 (0.009) | 19.00 (0.02) | 19.02 | 19.01 (0.02) | 19.02 (0.02) | |||||||||
| r magnitude | 18.87 (0.01) | 18.87 (0.01) | 18.86 (0.02) | 18.86 | 18.87 (0.02) | 18.86 (0.02) | |||||||||
| i magnitude | 18.83 (0.01) | 18.83 (0.01) | 18.82 (0.02) | 18.82 | 18.83 (0.02) | 18.82 (0.02) | |||||||||
| z magnitude | 18.84 (0.04) | 18.84 (0.04) | 18.82 (0.04) | 18.82 | 18.83 (0.04) | 18.82 (0.04) | |||||||||
| G magnitude | 18.81 (0.02) | 18.84 | 18.81 | 18.81 (0.003) | |||||||||||
| BP magnitude | 19.02 (0.02) | 19.05 | |||||||||||||
| RP magnitude | 18.51 (0.03) | 18.51 | |||||||||||||
| Pan g magnitude | 18.99 (0.01) | ||||||||||||||
| Pan r magnitude | 18.83 (0.006) | ||||||||||||||
| Pan i magnitude | 18.84 (0.005) | ||||||||||||||
| Pan z magnitude | 18.86 (0.01) | ||||||||||||||
| Pan y magnitude | 18.78 (0.09) | ||||||||||||||
| E(B-V) | 0.005 | ||||||||||||||
* Constant surface field
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