All names: TIC 290646079, LAMOST J092246.90+001740.9, SDSSJ092246.91+001740.9, GALEX J092246.9+001739, SDSS J092246.91+001740.9, LAMOST J092246.95+001739.1, TYC 228-492-1, Gaia DR3 3843836747411104384, Gaia DR2 3843836747411104384, 2MASS J09224691+0017410
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 09 22 46.91 | 09 22 46.91 (0.05) | ||
| Declination | 00 17 40.97 | 00 17 41.03 (0.05) | ||
| Spectral type | sd | sd | ||
| 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] | 0.29 (0.08) | 0.27 (0.04) | |
| Distance | [pc] | 3459.01 (928) | 3724.39 (623) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -3.084 (0.2) | -2.774 (0.06) | |
| Proper motion (declination) | [mas/yr] | -0.552 (0.3) | -0.915 (0.06) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 11.51 (0.08) | |||
| V magnitude | 11.40 (0.1) | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 11.96 (0.03) | 11.96 (0.03) | ||
| H magnitude | 12.02 (0.03) | 12.02 (0.03) | ||
| K magnitude | 12.06 (0.02) | 12.06 (0.02) | ||
| u magnitude | 13.05 (0.003) | |||
| g magnitude | ||||
| r magnitude | 12.15 (0.001) | |||
| i magnitude | 12.31 (0.001) | |||
| z magnitude | 13.19 (0.006) | |||
| G magnitude | 11.77 (0.0004) | 11.76 (0.003) | ||
| BP magnitude | 11.69 (0.004) | |||
| RP magnitude | 11.85 (0.003) | |||
| Pan g magnitude | 11.51 | |||
| Pan r magnitude | 11.84 | |||
| Pan i magnitude | 12.12 | |||
| Pan z magnitude | 12.33 | |||
| Pan y magnitude | 12.48 (0.002) | |||
| E(B-V) | 0.034 | |||
* 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.