All names: 2MASS J07312832+2643539, SDSS J073128.31+264353.9, LAMOST J073128.30+264353.8, TIC 415670562, GALEX J073128.3+264354, LAMOST J073128.30+264353.6, Gaia DR2 871932172735240448, Gaia DR3 871932172735240448
| Parameter | Unit | Guo et al. 2015 | Simbad |
|---|---|---|---|
| Right ascension | 07 31 28.32 (0.4) | ||
| Declination | 26 43 53.91 (0.3) | ||
| 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] | 6.53 (0.5) | |
| Distance | [pc] | 153.09 (11) | |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | -11.955 (0.5) | |
| Proper motion (declination) | [mas/yr] | -24.896 (0.4) | |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | |||
| V magnitude | |||
| R magnitude | |||
| I magnitude | |||
| J magnitude | 14.05 (0.03) | ||
| H magnitude | 13.46 (0.04) | ||
| K magnitude | 13.28 (0.03) | ||
| u magnitude | 18.46 (0.02) | ||
| g magnitude | 17.77 (0.005) | ||
| r magnitude | 17.25 (0.005) | ||
| i magnitude | 16.20 (0.004) | ||
| z magnitude | 15.50 (0.005) | ||
| G magnitude | 17.03 (0.008) | ||
| 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.