LB 8658
All names: Gaia DR3 661160294816776448, Gaia DR2 661160294815778560, WD 0843+199, GALEX J084634.4+194505, Gaia EDR3 661160294816776448, LB 8658, SDSS J084634.40+194504.9, HS 0843+1956
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD H | Gaia DR2 | Stilism | Gianninas et al. 2011 | Mukadam et al. 2004 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 46 34.38 (0.07) | 08 46 34.38 (0.1) | 08 46 34.38 | 08 46 34.41 (0.07) | 08 46 33.86 | ||||||
| Declination | 19 45 04.42 (0.04) | 19 45 04.44 (0.06) | 19 45 04.42 | 19 45 05.18 (0.04) | 19 45 04.68 | ||||||
| Spectral type | DA | DA | DA | DA4.9 | ? | ||||||
| Effective temperature | [K] | 9447.0 | 10350.0 (157) | 10000.0 | 9929.0 (84) | ||||||
| log(g) | [cgs] | 7.14 | 8.07 (0.07) | 7.19 (0.02) | |||||||
| Mass | [M☉] | 0.245 | 0.65 (0.04) | 0.261 (0.007) | |||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.3081 | |||||||||
| 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] | 6.79 (0.09) | 6.95 (0.1) | 6.79 | 6.79 (0.09) | ||||||
| Distance | [pc] | 147.21 (2) | 143.78 (3) | 92.00 | 147.21 | 147.21 (2) | |||||
| Composition | H | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -20.60550752 (0.08) | -20.57562423 (0.2) | -20.606 (0.08) | |||||||
| Proper motion (declination) | [mas/yr] | -47.45127009 (0.07) | -47.66524819 (0.1) | -47.451 (0.07) | |||||||
| Variability | NOV | NOV | |||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 17.00 | ||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 17.42 (0.01) | ||||||||||
| g magnitude | 16.95 (0.02) | ||||||||||
| r magnitude | 17.03 (0.02) | ||||||||||
| i magnitude | 17.14 (0.02) | ||||||||||
| z magnitude | 17.32 (0.02) | ||||||||||
| G magnitude | 16.94 (0.004) | 16.96 | 16.94 | 16.94 (0.003) | |||||||
| BP magnitude | 16.99 (0.004) | 16.98 | |||||||||
| RP magnitude | 16.84 (0.005) | 16.84 | |||||||||
| Pan g magnitude | 16.95 (0.005) | ||||||||||
| Pan r magnitude | 17.00 (0.002) | ||||||||||
| Pan i magnitude | 17.15 (0.005) | ||||||||||
| Pan z magnitude | 17.31 (0.006) | ||||||||||
| Pan y magnitude | 17.41 (0.01) | ||||||||||
| E(B-V) | 0.006 | ||||||||||
* Constant surface field
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