WD 0839+345
All names: WDJ084252.30+342422.37, SDSS J084252.28+342422.3, Ton 941, KUV 08397+3435, J0842+3424, [BGK2006] J084252.28+342422.3, LAMOST J084252.28+342422.2, SDSS J084252.28+342422.2, GALEX J084252.2+342422, Gaia DR2 717203467636317056, Gaia DR3 717203467636317056, SDSS J084252.29+342422.3, CBS 80, WD 0839+345, LAMOST J084252.29+342421.8, Gaia EDR3 717203467636317056
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | Kilic et al. 2020 | MWDD H | Gaia DR2 | Stilism | Guo et al. 2015 | Gianninas et al. 2011 | Tremblay et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 42 52.21 (0.04) | 08 42 52.29 | 08 42 52.22 (0.06) | 08 42 52.21 | 08 42 52.30 (0.04) | 08 42 52.22 | 08 42 52.28 | 08 42 52.73 | 08 42 52.28 | ||||||||||
| Declination | 34 24 21.66 (0.03) | 34 24 22.25 | 34 24 21.69 (0.04) | 34 24 21.66 | 34 24 22.37 (0.03) | 34 24 21.69 | 34 24 22.28 | 34 24 17.64 | 34 24 22.28 | ||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA | DA2.8 | DA_auto | DA | DA | DA | |||||||
| Effective temperature | [K] | 15323.0 (129) | 15315.0 (128) | 16005.0 | 18787.0 (378) | 18230.0 (292) | 18810.0 (130) | 17658.0 (213) | 18084.0 (97) | 18341.0 (107) | |||||||||
| log(g) | [cgs] | 8.02 (0.009) | 8.04 (0.01) | 8.08 | 8.17 (0.07) | 8.15 (0.05) | 8.21 (0.02) | 8.17 (0.01) | 8.16 (0.02) | 8.21 (0.02) | |||||||||
| Mass | [M☉] | 0.626 (0.008) | 0.635 (0.01) | 0.664 | 0.72 (0.04) | 0.71 (0.03) | 0.75 (0.01) | 0.719 (0.01) | 0.736 (0.01) | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||||||||
| Cooling age | [Gyr] | 0.1845 | 0.1413 | ||||||||||||||||
| 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] | 10.09 (0.06) | 10.20 (0.08) | 10.09 | 10.09 (0.06) | 10.20 (0.08) | |||||||||||||
| Distance | [pc] | 99.12 (0.5) | 98.01 (0.8) | 102.00 | 99.12 | 99.12 (0.5) | 98.01 (0.8) | ||||||||||||
| Composition | H | H | H | H | |||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -64.4255437 (0.06) | -64.37464553 (0.1) | -64.426 (0.06) | -64.37464553 | -64.8 | |||||||||||||
| Proper motion (declination) | [mas/yr] | -44.14422877 (0.04) | -44.21036712 (0.08) | -44.144 (0.04) | -44.21036712 | -44.0 | |||||||||||||
| Variability | |||||||||||||||||||
| Magnetic | |||||||||||||||||||
| Bd | [MG] | ||||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||||
| Binarity | |||||||||||||||||||
| B magnitude | 16.00 | ||||||||||||||||||
| V magnitude | 16.20 | ||||||||||||||||||
| R magnitude | |||||||||||||||||||
| I magnitude | |||||||||||||||||||
| J magnitude | |||||||||||||||||||
| H magnitude | |||||||||||||||||||
| K magnitude | |||||||||||||||||||
| u magnitude | 16.33 (0.006) | 16.33 (0.006) | 16.19 (0.005) | 16.35 (0.06) | 16.34 | 16.34 (0.06) | |||||||||||||
| g magnitude | 16.06 (0.003) | 16.05 (0.003) | 16.06 (0.003) | 16.06 (0.02) | 16.06 | 16.06 (0.02) | |||||||||||||
| r magnitude | 16.41 (0.004) | 16.41 (0.004) | 16.40 (0.004) | 16.40 (0.01) | 16.40 | 16.40 (0.01) | |||||||||||||
| i magnitude | 16.68 (0.005) | 16.68 (0.005) | 16.69 (0.004) | 16.67 (0.02) | 16.68 | 16.67 (0.02) | |||||||||||||
| z magnitude | 17.00 (0.01) | 17.00 (0.01) | 16.98 (0.01) | 16.99 (0.02) | 17.00 | 16.99 (0.02) | |||||||||||||
| G magnitude | 16.26 (0.002) | 16.28 | 16.26 | 16.26 (0.003) | 16.28 | ||||||||||||||
| BP magnitude | 16.19 (0.002) | 16.17 | 16.17 | ||||||||||||||||
| RP magnitude | 16.41 (0.004) | 16.41 | 16.41 | ||||||||||||||||
| Pan g magnitude | 16.14 (0.002) | ||||||||||||||||||
| Pan r magnitude | 16.43 (0.003) | ||||||||||||||||||
| Pan i magnitude | 16.71 (0.004) | ||||||||||||||||||
| Pan z magnitude | 16.96 (0.004) | ||||||||||||||||||
| Pan y magnitude | 17.12 (0.01) | ||||||||||||||||||
| E(B-V) | 0.003 | ||||||||||||||||||
* Constant surface field
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