All names: SDSSJ154643.57+611715.9, GALEX J154643.5+611715, Gaia DR2 1627453921245097472, Gaia DR3 1627453925538168704, SDSS J154643.57+611715.9, SDSS J154643.58+611715.7
| Parameter | Unit | Geier 2020 | Simbad |
|---|---|---|---|
| Right ascension | 15 46 43.56 | 15 46 43.54 (0.6) | |
| Declination | 61 17 15.96 | 61 17 15.86 (0.5) | |
| Spectral type | sd | sd+F/K | |
| 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] | 11.048 (0.6) | |
| Proper motion (declination) | [mas/yr] | 4.396 (0.6) | |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | |||
| V magnitude | |||
| R magnitude | |||
| I magnitude | |||
| J magnitude | 16.73 (0.2) | ||
| H magnitude | 16.79 | ||
| K magnitude | 17.09 | ||
| u magnitude | 17.93 (0.01) | 17.93 (0.01) | |
| g magnitude | 17.92 (0.006) | 17.92 (0.006) | |
| r magnitude | 18.09 (0.007) | 18.09 (0.007) | |
| i magnitude | 18.33 (0.01) | 18.33 (0.01) | |
| z magnitude | 18.32 (0.03) | 18.32 (0.03) | |
| G magnitude | 18.30 (0.01) | 18.45 (0.01) | |
| BP magnitude | 17.77 (0.03) | ||
| RP magnitude | 17.59 (0.04) | ||
| Pan g magnitude | 17.86 (0.02) | ||
| Pan r magnitude | 18.03 (0.02) | ||
| Pan i magnitude | 18.57 (0.02) | ||
| Pan z magnitude | |||
| Pan y magnitude | 18.54 (0.03) | ||
| 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.