All names: LAMOST J120857.82-015027.4, TIC 56760242, GALEX J120857.8-015027, WISE J120857.84-015027.5, Gaia DR2 3697544869909906944, DENIS J120857.8-015027, WISEA J120857.83-015027.6, Gaia DR3 3697544874205531648, 2MASS J12085783-0150275, SDSS J120857.82-015027.5, USNO-B1.0 0881-00266364
| Parameter | Unit | Guo et al. 2015 | Simbad |
|---|---|---|---|
| Right ascension | 12 08 57.83 (0.5) | ||
| Declination | -01 50 27.48 (0.4) | ||
| Spectral type | DA+M | DA+M | |
| 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] | 2.43 (0.5) | |
| Distance | [pc] | 411.22 (93) | |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | 11.225 (0.7) | |
| Proper motion (declination) | [mas/yr] | -21.433 (0.5) | |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | 17.70 | ||
| V magnitude | |||
| R magnitude | 17.60 | ||
| I magnitude | 16.18 (0.06) | ||
| J magnitude | 15.01 (0.04) | ||
| H magnitude | 14.47 (0.04) | ||
| K magnitude | 14.06 (0.06) | ||
| u magnitude | 18.83 (0.02) | ||
| g magnitude | 18.29 (0.007) | ||
| r magnitude | 17.72 (0.006) | ||
| i magnitude | 16.82 (0.005) | ||
| z magnitude | 16.25 (0.008) | ||
| G magnitude | 17.62 (0.005) | ||
| BP magnitude | |||
| RP magnitude | |||
| Pan g magnitude | |||
| Pan r magnitude | |||
| Pan i magnitude | |||
| Pan z magnitude | |||
| Pan y magnitude | |||
| E(B-V) | |||
* 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.