All names: USNO-B1.0 0950-00175314, PM J09222+0504, LSPM J0922+0504, Gaia DR2 585488567401589248, SDSS J092213.46+050438.3, SDSS J092213.46+050438.2, LP 547-35, NLTT 21580
| Parameter | Unit | Simbad |
|---|---|---|
| Right ascension | 09 22 13.50 (0.1) | |
| Declination | 05 04 38.31 (0.1) | |
| Spectral type | DAH | |
| 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] | 19.52 (0.2) |
| Distance | [pc] | 51.22 (0.4) |
| Composition | ||
| Proper motion (right ascension) | [mas/yr] | -251.459 (0.3) |
| Proper motion (declination) | [mas/yr] | -45.312 (0.2) |
| Variability | ||
| Magnetic | ||
| Bd | [MG] | |
| Infrared excess (disk) | ||
| Binarity | ||
| B magnitude | 18.10 | |
| V magnitude | ||
| R magnitude | 17.40 | |
| I magnitude | ||
| J magnitude | ||
| H magnitude | ||
| K magnitude | ||
| u magnitude | 19.41 (0.03) | |
| g magnitude | 18.39 (0.007) | |
| r magnitude | 17.95 (0.006) | |
| i magnitude | 17.80 (0.007) | |
| z magnitude | 17.73 (0.02) | |
| G magnitude | 17.98 (0.002) | |
| BP magnitude | ||
| RP magnitude | ||
| Pan g magnitude | ||
| Pan r magnitude | ||
| Pan i magnitude | ||
| Pan z magnitude | ||
| Pan y magnitude |
* 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 (LANL). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.