All names: 2MASS J16335203+0002260, WISE J163352.04+000226.2, PG 1631+001, Gaia DR3 4383466853778414720, GALEX J163352.0+000226, TIC 57942778, UCAC4 451-062747, SDSS J163352.03+000226.1, Gaia DR2 4383466853778414720, PG1631+001, WISEA J163352.03+000226.1, UCAC2 31883381
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 16 33 52.03 | 16 33 52.04 (0.02) | ||
| Declination | 00 02 26.09 | 00 02 26.12 (0.01) | ||
| Spectral type | sdB | sdB | ||
| 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] | 0.83 (0.06) | 0.83 (0.03) | |
| Distance | [pc] | 1200.77 (85) | 1201.78 (47) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 4.239 (0.1) | 4.649 (0.03) | |
| Proper motion (declination) | [mas/yr] | 6.952 (0.06) | 7.265 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.78 (0.03) | |||
| V magnitude | 14.59 (0.02) | |||
| R magnitude | 14.74 (0.1) | |||
| I magnitude | ||||
| J magnitude | 13.62 (0.03) | 13.62 (0.03) | ||
| H magnitude | 13.18 (0.03) | 13.18 (0.03) | ||
| K magnitude | 13.07 (0.03) | 13.07 (0.03) | ||
| u magnitude | 14.75 (0.004) | |||
| g magnitude | 14.59 (0.003) | |||
| r magnitude | 14.53 (0.004) | |||
| i magnitude | 14.48 (0.004) | |||
| z magnitude | 14.47 (0.005) | |||
| G magnitude | 14.46 (0.001) | 14.44 (0.003) | ||
| BP magnitude | 14.57 (0.006) | |||
| RP magnitude | 14.13 (0.004) | |||
| Pan g magnitude | 14.59 (0.01) | |||
| Pan r magnitude | 14.47 (0.02) | |||
| Pan i magnitude | 14.40 (0.007) | |||
| Pan z magnitude | 14.45 (0.002) | |||
| Pan y magnitude | 14.42 (0.006) | |||
| E(B-V) | 0.097 | |||
* 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.