SDSS J084312.05+303042.4
All names: GALEX J084312.0+303042, WD 0840+306, Gaia DR2 706391415747682816, SDSS J084312.05+303042.4, Gaia EDR3 706391415747682816, Gaia DR3 706391415747682816, SDSS J084312.06+303042.4, SDSS J084312.06+303042.5
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Tremblay et al. 2011 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 43 12.04 (0.2) | 08 43 12.06 | 08 43 12.04 (0.3) | 08 43 12.06 (0.2) | 08 43 12.06 | 08 43 11.83 | 08 43 12.06 | ||||||
| Declination | 30 30 42.09 (0.1) | 30 30 42.48 | 30 30 42.11 (0.2) | 30 30 42.65 (0.1) | 30 30 42.48 | 30 30 40.32 | 30 30 42.48 | ||||||
| Spectral type | DA | DA | DA | DA_auto | DA | DA | DA | ||||||
| Effective temperature | [K] | 10328.0 | 11100.0 (210) | 10850.0 (124) | 10797.0 (127) | ||||||||
| log(g) | [cgs] | 7.67 | 8.04 (0.1) | 8.07 (0.09) | 8.07 (0.1) | ||||||||
| Mass | [M☉] | 0.429 | 0.63 (0.07) | 0.641 (0.06) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.3760 | 0.5129 | ||||||||||
| 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] | 3.15 (0.3) | 2.86 (0.5) | 3.15 (0.3) | |||||||||
| Distance | [pc] | 317.14 (32) | 349.14 (56) | 317.14 (32) | |||||||||
| Composition | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -21.07618922 (0.3) | -20.83765979 (0.7) | -21.076 (0.3) | -24.4 | ||||||||
| Proper motion (declination) | [mas/yr] | -34.81095095 (0.2) | -35.02328827 (0.4) | -34.811 (0.2) | -32.5 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | |||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 19.72 (0.03) | 19.72 (0.03) | 19.73 (0.04) | 19.72 | 19.70 (0.04) | ||||||||
| g magnitude | 19.27 (0.01) | 19.27 (0.01) | 19.31 (0.02) | 19.30 | 19.29 (0.02) | ||||||||
| r magnitude | 19.41 (0.01) | 19.41 (0.01) | 19.41 (0.02) | 19.40 | 19.41 (0.02) | ||||||||
| i magnitude | 19.58 (0.02) | 19.58 (0.02) | 19.56 (0.03) | 19.55 | 19.56 (0.03) | ||||||||
| z magnitude | 19.66 (0.08) | 19.66 (0.08) | 19.67 (0.09) | 19.66 | 19.66 (0.09) | ||||||||
| G magnitude | 19.33 (0.02) | 19.37 | 19.33 (0.004) | ||||||||||
| BP magnitude | 19.41 (0.02) | 19.47 | |||||||||||
| RP magnitude | 19.41 (0.05) | 19.44 | |||||||||||
| Pan g magnitude | 19.29 (0.01) | ||||||||||||
| Pan r magnitude | 19.42 (0.01) | ||||||||||||
| Pan i magnitude | 19.54 (0.01) | ||||||||||||
| Pan z magnitude | 19.80 (0.01) | ||||||||||||
| Pan y magnitude | 19.74 (0.05) | ||||||||||||
| E(B-V) | 0.018 | ||||||||||||
* Constant surface field
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