All names: SDSS J080846.19+313106.0, LAMOST J080846.19+313106.0, TIC 165818951, [DDM2009] CSS080305 J080846+313106, SDSS J080846.18+313106.0, SDSS J080846.19+313105.9, Gaia EDR3 877832117769627904, Gaia DR2 877832117769627904, Gaia DR3 877832117769627904, 2MASS J08084617+3131060, CRTS J080846.2+313106, ZTF17aabyrpg
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|
| Right ascension | 08 08 46.20 (0.1) | 08 08 46.19 | 08 08 46.20 (0.2) | 08 08 46.19 (0.1) | 08 08 46.19 | ||
| Declination | 31 31 05.92 (0.1) | 31 31 06.00 | 31 31 05.92 (0.2) | 31 31 05.98 (0.1) | 31 31 05.98 | ||
| Spectral type | DOAe | DOAE | |||||
| Effective temperature | [K] | 6300.0 (3) | |||||
| log(g) | [cgs] | 10.00 (0.003) | |||||
| Mass | [M☉] | ||||||
| log(Luminosity) | [L☉] | ||||||
| Cooling age | [Gyr] | ||||||
| log(H/He) | |||||||
| log(C/He) | |||||||
| log(Ca/He) | |||||||
| log(Ca/H) | |||||||
| Parallax | [mas] | 0.57 (0.2) | 0.37 (0.3) | 0.56 (0.2) | |||
| Distance | [pc] | 1769.82 (557) | 2699.95 (1916) | 1769.91 (557) | |||
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | 3.478957913 (0.2) | 3.185628641 (0.4) | 3.479 (0.2) | |||
| Proper motion (declination) | [mas/yr] | -3.492091296 (0.2) | -3.296599882 (0.3) | -3.492 (0.2) | |||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | |||||||
| B magnitude | |||||||
| V magnitude | |||||||
| R magnitude | |||||||
| I magnitude | |||||||
| J magnitude | 16.18 (0.1) | ||||||
| H magnitude | 15.66 (0.1) | ||||||
| K magnitude | |||||||
| u magnitude | 19.12 (0.02) | 19.12 (0.02) | 19.14 (0.03) | ||||
| g magnitude | 19.43 (0.01) | 19.43 (0.01) | 19.44 (0.02) | ||||
| r magnitude | 18.75 (0.009) | 18.75 (0.009) | 18.75 (0.01) | ||||
| i magnitude | 18.17 (0.009) | 18.16 (0.009) | 18.14 (0.02) | ||||
| z magnitude | 17.74 (0.01) | 17.73 (0.01) | 17.73 (0.02) | ||||
| G magnitude | 18.65 (0.06) | 18.68 | 18.65 (0.02) | ||||
| BP magnitude | 19.24 (0.06) | 19.26 | |||||
| RP magnitude | 17.82 (0.04) | 17.78 | |||||
| Pan g magnitude | |||||||
| Pan r magnitude | |||||||
| Pan i magnitude | |||||||
| Pan z magnitude | |||||||
| Pan y magnitude | |||||||
| E(B-V) | 0.035 | ||||||
* 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.