All names: Gaia DR2 3146189129164184064, Gaia DR3 3146189129164184064, SDSS J080403.05+083030.8, GALEX J080403.0+083031, SDSS J080403.06+083030.8, Gaia EDR3 3146189129164184064, SDSS J080403.05+083030.7
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 04 03.05 (0.2) | 08 04 03.06 | 08 04 03.05 (0.2) | 08 04 03.06 (0.2) | 08 04 03.06 | ||||
| Declination | 08 30 30.77 (0.1) | 08 30 30.77 | 08 30 30.77 (0.1) | 08 30 30.84 (0.1) | 08 30 30.82 | ||||
| Spectral type | DA | DA | DA | ||||||
| Effective temperature | [K] | 75275.0 (6879) | 82219.0 (6036) | ||||||
| log(g) | [cgs] | 7.26 (0.3) | 7.17 (0.2) | ||||||
| Mass | [M☉] | 0.49 (0.07) | 0.526 (0.04) | ||||||
| log(Luminosity) | [L☉] | 1.32 (0.3) | |||||||
| Cooling age | [Gyr] | 0.0001 | |||||||
| 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] | 0.64 (0.2) | 0.29 (0.3) | 0.64 (0.2) | |||||
| Distance | [pc] | 1571.41 (575) | 3489.18 (3391) | 1571.34 (575) | |||||
| Composition | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | -3.233936298 (0.2) | -3.511317426 (0.5) | -3.234 (0.2) | |||||
| Proper motion (declination) | [mas/yr] | -4.562079559 (0.2) | -4.958535183 (0.3) | -4.562 (0.2) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 18.04 (0.01) | 18.04 (0.01) | 18.04 (0.02) | ||||||
| g magnitude | 18.50 (0.007) | 18.50 (0.007) | 18.54 (0.02) | ||||||
| r magnitude | 19.07 (0.01) | 19.07 (0.01) | 19.11 (0.02) | ||||||
| i magnitude | 19.44 (0.02) | 19.44 (0.02) | 19.47 (0.02) | ||||||
| z magnitude | 19.76 (0.06) | 19.76 (0.06) | 19.69 (0.09) | ||||||
| G magnitude | 18.81 (0.02) | 18.86 | 18.81 (0.004) | ||||||
| BP magnitude | 18.66 (0.02) | 18.52 | |||||||
| RP magnitude | 19.12 (0.05) | 19.11 | |||||||
| Pan g magnitude | 18.63 (0.005) | ||||||||
| Pan r magnitude | 19.09 (0.01) | ||||||||
| Pan i magnitude | 19.49 (0.01) | ||||||||
| Pan z magnitude | 19.80 (0.01) | ||||||||
| Pan y magnitude | 19.85 (0.07) | ||||||||
| E(B-V) | 0.024 | ||||||||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.