WD 0804+446
All names: 2MASS J08074559+4431075, TIC 99100380, SDSS J080745.52+443107.4, GALEX J080745.4+443107, LP 208-32, SDSS J080745.52+443107.3, Gaia DR3 928937074630507392, WDJ080745.53+443107.38, SDSS J080745.53+443107.3, J0807+4431, Gaia DR2 928937074630507392, Gaia EDR3 928937074630507392, SDSS J080745.53+443107.4, WD 0804+446
| 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 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 07 45.47 (0.08) | 08 07 45.53 | 08 07 45.47 (0.1) | 08 07 45.47 | 08 07 45.53 (0.08) | 08 07 45.47 | 08 07 47.90 | ||||||||
| Declination | 44 31 05.79 (0.06) | 44 31 07.39 | 44 31 05.84 (0.08) | 44 31 05.79 | 44 31 07.38 (0.07) | 44 31 05.84 | 44 31 16.32 | ||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA | DA | |||||||
| Effective temperature | [K] | 6283.0 (22) | 6309.0 (21) | 6283.0 (22) | 6208.0 | 6440.0 (69) | |||||||||
| log(g) | [cgs] | 8.29 (0.008) | 8.31 (0.01) | 8.29 (0.01) | 8.27 | 8.35 (0.02) | |||||||||
| Mass | [M☉] | 0.774 (0.007) | 0.787 (0.009) | 0.776 (0.009) | 0.759 | 0.812 (0.02) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||||||
| Cooling age | [Gyr] | 4.0700 | 3.7600 | ||||||||||||
| 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] | 22.34 (0.1) | 22.40 (0.2) | 22.40 (0.2) | 22.34 | 22.34 (0.1) | 22.40 (0.2) | ||||||||
| Distance | [pc] | 44.77 (0.2) | 44.64 (0.3) | 44.65 (0.3) | 44.77 | 44.77 (0.2) | 44.65 (0.3) | ||||||||
| Composition | H | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -39.99464167 (0.09) | -39.73361568 (0.2) | -39.995 (0.09) | -39.73361568 | ||||||||||
| Proper motion (declination) | [mas/yr] | -99.49118371 (0.07) | -99.65124394 (0.1) | -99.491 (0.07) | -99.65124394 | ||||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | yes | ||||||||||||||
| B magnitude | |||||||||||||||
| V magnitude | 17.77 | ||||||||||||||
| R magnitude | |||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | 16.71 (0.02) | 16.64 (0.1) | |||||||||||||
| H magnitude | 16.62 (0.3) | 16.62 (0.3) | |||||||||||||
| K magnitude | |||||||||||||||
| u magnitude | 18.59 (0.02) | 18.59 (0.02) | 18.59 (0.02) | 18.59 (0.02) | |||||||||||
| g magnitude | 17.83 (0.006) | 17.83 (0.006) | 17.83 (0.006) | ||||||||||||
| r magnitude | 17.52 (0.006) | 17.52 (0.006) | 17.52 (0.006) | ||||||||||||
| i magnitude | 17.40 (0.006) | 17.41 (0.006) | 17.41 (0.006) | ||||||||||||
| z magnitude | 17.42 (0.01) | 17.43 (0.01) | 17.43 (0.01) | ||||||||||||
| G magnitude | 17.51 (0.01) | 17.54 | 17.51 | 17.51 (0.003) | 17.54 | ||||||||||
| BP magnitude | 17.80 (0.01) | 17.82 | 17.82 | ||||||||||||
| RP magnitude | 17.10 (0.008) | 17.10 | 17.10 | ||||||||||||
| Pan g magnitude | 17.80 (0.004) | 17.80 (0.004) | |||||||||||||
| Pan r magnitude | 17.53 (0.006) | 17.53 (0.005) | |||||||||||||
| Pan i magnitude | 17.42 (0.002) | 17.42 (0.002) | |||||||||||||
| Pan z magnitude | 17.43 (0.009) | 17.43 (0.01) | |||||||||||||
| Pan y magnitude | 17.42 (0.02) | 17.42 (0.02) | |||||||||||||
| E(B-V) | 0.001 | ||||||||||||||
* Constant surface field
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