All names: TYC 228-492-1, LAMOST J092246.95+001739.1, 2MASS J09224691+0017410, GALEX J092246.9+001739, TIC 290646079, SDSS J092246.91+001740.9, Gaia DR3 3843836747411104384, SDSSJ092246.91+001740.9, LAMOST J092246.90+001740.9, Gaia DR2 3843836747411104384
| 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.