All names: GALEX J091850.2+331513, WISEA J091850.10+331514.1, TIC 8745909, UCAC4 617-045457, LAMOST J091850.23+331513.1, WISE J091850.11+331514.2, USNO-B1.0 1232-00208892, 2MASS J09185019+3315147
| Parameter | Unit | Guo et al. 2015 | Simbad |
|---|---|---|---|
| Right ascension | 09 18 50.19 (60) | ||
| Declination | 33 15 14.73 (60) | ||
| 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] | ||
| Distance | [pc] | ||
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | ||
| Proper motion (declination) | [mas/yr] | ||
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | 16.66 (0.1) | ||
| V magnitude | 15.70 (0.05) | ||
| R magnitude | 15.72 (0.08) | ||
| I magnitude | |||
| J magnitude | 12.71 (0.02) | ||
| H magnitude | 12.09 (0.02) | ||
| K magnitude | 11.88 (0.02) | ||
| u magnitude | 17.79 (0.01) | ||
| g magnitude | 17.52 (0.005) | ||
| r magnitude | 18.01 (0.007) | ||
| i magnitude | 17.47 (0.007) | ||
| z magnitude | 22.83 (1) | ||
| G magnitude | |||
| 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.