All names: SDSS J081647.39+534017.6, LAMOST J081647.38+534017.8, Gaia DR3 1031806794114311552, GALEX J081647.3+534017, WISE J081647.38+534017.6, 2MASS J08164740+5340175, Gaia DR2 1031806794114311552
| Parameter | Unit | Stilism | Simbad |
|---|---|---|---|
| Right ascension | 08 16 47.40 (0.07) | ||
| Declination | 53 40 17.63 (0.06) | ||
| Spectral type | dM2+D | ||
| Effective temperature | [K] | ||
| log(g) | [cgs] | ||
| Mass | [M☉] | ||
| log(Luminosity) | [L☉] | ||
| Cooling age | [Gyr] | ||
| log(H/He) | |||
| log(C/He) | |||
| log(Ca/He) | |||
| log(Ca/H) | |||
| Parallax | [mas] | 3.48 (0.1) | |
| Distance | [pc] | 286.99 (8) | |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | -22.267 (0.09) | |
| Proper motion (declination) | [mas/yr] | -11.625 (0.09) | |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | |||
| V magnitude | |||
| R magnitude | |||
| I magnitude | |||
| J magnitude | 14.59 (0.04) | ||
| H magnitude | 13.90 (0.04) | ||
| K magnitude | 13.65 (0.05) | ||
| u magnitude | 19.35 (0.03) | ||
| g magnitude | 18.53 (0.007) | ||
| r magnitude | 17.88 (0.007) | ||
| i magnitude | 16.72 (0.005) | ||
| z magnitude | 16.00 (0.007) | ||
| G magnitude | 17.31 (0.003) | ||
| BP magnitude | |||
| RP magnitude | |||
| Pan g magnitude | |||
| Pan r magnitude | |||
| Pan i magnitude | |||
| Pan z magnitude | |||
| Pan y magnitude | |||
| E(B-V) | 0.018 | ||
* 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.