WD J0821+3727
All names: Gaia EDR3 908048587085834752, Gaia DR3 908048587085834752, SDSS J082108.18+372738.3, WD 0817+376, Gaia DR2 908048587085834752, WDJ082108.15+372738.64, J0821+3727
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | Caron et al. 2023 | Kilic et al. 2020 | MWDD H | Gaia DR2 | Stilism | Vincent et al. 2024 | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 21 08.38 (0.1) | 08 21 08.18 | 08 21 08.37 (0.2) | 08 21 08.38 | 08 21 08.37 | 08 21 07.85 | 08 21 08.18 | ||||||||
| Declination | 37 27 36.20 (0.1) | 37 27 38.29 | 37 27 36.27 (0.2) | 37 27 36.20 | 37 27 36.27 | 37 27 33.12 | 37 27 38.32 | ||||||||
| Spectral type | DA | DA | DA | DA | DA: | DA10.0 | DAH | DC: | |||||||
| Effective temperature | [K] | 5011.0 (24) | 5028.0 (24) | 5010.0 (24) | 5023.0 | 5139.0 (88) | 6300.0 (3) | ||||||||
| log(g) | [cgs] | 7.97 (0.01) | 8.00 (0.02) | 7.96 (0.02) | 7.97 | 8.06 (0.04) | 10.00 (0.004) | ||||||||
| Mass | [M☉] | 0.562 (0.01) | 0.578 (0.02) | 0.556 (0.02) | 0.561 | 0.616 (0.04) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||||||
| Cooling age | [Gyr] | 5.7400 | 5.1600 | ||||||||||||
| 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] | 18.59 (0.2) | 18.49 (0.2) | 18.49 (0.2) | 18.59 | 18.49 (0.2) | |||||||||
| Distance | [pc] | 53.78 (0.5) | 54.08 (0.7) | 54.09 (0.7) | 53.78 | 54.09 (0.7) | |||||||||
| Composition | H | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 166.3698165 (0.2) | 165.9320064 (0.3) | 165.9320064 | |||||||||||
| Proper motion (declination) | [mas/yr] | -152.3799884 (0.1) | -152.3745301 (0.3) | -152.3745301 | |||||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | |||||||||||||||
| B magnitude | |||||||||||||||
| V magnitude | |||||||||||||||
| R magnitude | |||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | 17.25 (0.04) | ||||||||||||||
| H magnitude | 17.00 (0.04) | ||||||||||||||
| K magnitude | 16.85 (0.05) | ||||||||||||||
| u magnitude | 20.74 (0.05) | 20.97 (0.1) | 20.74 (0.06) | 20.68 | 20.72 (0.06) | ||||||||||
| g magnitude | 19.14 (0.01) | 19.14 (0.01) | 19.14 | 19.14 (0.02) | |||||||||||
| r magnitude | 18.42 (0.008) | 18.42 (0.008) | 18.43 | 18.43 (0.01) | |||||||||||
| i magnitude | 18.15 (0.008) | 18.15 (0.008) | 18.15 | 18.14 (0.02) | |||||||||||
| z magnitude | 18.01 (0.02) | 18.02 (0.02) | 18.04 | 18.01 (0.02) | |||||||||||
| G magnitude | 18.46 (0.03) | 18.49 | 18.46 | 18.49 | |||||||||||
| BP magnitude | 18.95 (0.03) | 18.95 | 18.95 | ||||||||||||
| RP magnitude | 17.85 (0.02) | 17.87 | 17.87 | ||||||||||||
| Pan g magnitude | 19.04 (0.007) | 19.04 (0.008) | |||||||||||||
| Pan r magnitude | 18.43 (0.005) | 18.43 (0.005) | |||||||||||||
| Pan i magnitude | 18.17 (0.004) | 18.17 (0.004) | |||||||||||||
| Pan z magnitude | 18.10 (0.008) | 18.10 (0.009) | |||||||||||||
| Pan y magnitude | 18.07 (0.02) | 18.07 (0.02) | |||||||||||||
| E(B-V) | 0.001 | ||||||||||||||
* Constant surface field
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