PG 0839+232
All names: J0842+2300, Gaia EDR3 665392383790872192, GALEX J084252.9+230025, Gaia DR3 665392383790872192, 1SWASP J084253.04+230025.6, TIC 184872734, EPIC 212148813, WDJ084253.03+230025.47, SDSS J084253.02+230025.1, USNO-B1.0 1130-00194074, WD 0839+231, Gaia DR2 665392383790872192, 2MASS J08425303+2300255, PG 0839+232
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Kilic et al. 2020 | MWDD H | Gaia DR2 | Stilism | Gianninas et al. 2011 | Koester et al. 2009 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 42 53.01 (0.03) | 08 42 53.01 (0.04) | 08 42 53.01 | 08 42 53.03 (0.03) | 08 42 53.01 | 08 42 52.46 | ||||||||
| Declination | 23 00 24.09 (0.02) | 23 00 24.13 (0.02) | 23 00 24.09 | 23 00 25.47 (0.02) | 23 00 24.13 | 23 00 17.28 | ||||||||
| Spectral type | DA | DA | DA | DA | DA | DA2.0 | DA2 | |||||||
| Effective temperature | [K] | 25772.0 (316) | 25773.0 (314) | 23681.0 | 25830.0 (382) | 25852.0 (39) | 27020.0 (228) | |||||||
| log(g) | [cgs] | 7.79 (0.01) | 7.79 (0.01) | 7.68 | 7.87 (0.04) | 7.64 (0.005) | 7.86 (0.009) | |||||||
| Mass | [M☉] | 0.532 (0.007) | 0.529 (0.007) | 0.476 | 0.57 (0.02) | 0.564 (0.006) | ||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 0.0200 | ||||||||||||
| 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] | 12.95 (0.04) | 12.90 (0.05) | 12.95 | 12.95 (0.04) | 12.90 (0.05) | ||||||||
| Distance | [pc] | 77.21 (0.2) | 77.52 (0.3) | 73.00 | 77.21 | 77.21 (0.2) | 77.52 (0.3) | |||||||
| Composition | H | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -21.70512266 (0.04) | -21.56724688 (0.08) | -21.705 (0.04) | -21.56724688 | |||||||||
| Proper motion (declination) | [mas/yr] | -86.44650051 (0.03) | -86.49354634 (0.05) | -86.447 (0.03) | -86.49354634 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | 14.18 | |||||||||||||
| V magnitude | 14.42 | 14.45 | ||||||||||||
| R magnitude | 14.80 | |||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | 14.94 (0.04) | |||||||||||||
| H magnitude | 15.32 (0.1) | |||||||||||||
| K magnitude | 15.08 (0.1) | |||||||||||||
| u magnitude | 15.61 (0.01) | 14.04 (0.003) | ||||||||||||
| g magnitude | 15.97 (0.01) | 14.16 (0.003) | ||||||||||||
| r magnitude | 17.41 (0.03) | 14.62 (0.003) | ||||||||||||
| i magnitude | 16.14 (0.01) | 14.96 (0.003) | ||||||||||||
| z magnitude | 15.80 (0.01) | 15.27 (0.005) | ||||||||||||
| G magnitude | 14.42 (0.001) | 14.43 | 14.42 | 14.42 (0.003) | 14.43 | |||||||||
| BP magnitude | 14.30 (0.001) | 14.26 | 14.26 | |||||||||||
| RP magnitude | 14.66 (0.001) | 14.67 | 14.67 | |||||||||||
| Pan g magnitude | 14.26 (0.003) | |||||||||||||
| Pan r magnitude | 14.66 (0.004) | |||||||||||||
| Pan i magnitude | 14.98 (0.003) | |||||||||||||
| Pan z magnitude | 15.26 (0.003) | |||||||||||||
| Pan y magnitude | 15.45 (0.002) | |||||||||||||
| E(B-V) | 0.003 | |||||||||||||
* Constant surface field
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