All names: TIC 310235039, 2MASS J16334932+2632586, HIDDEN NAME PG 1631+266, Gaia DR3 1304445275047376640, Ton 817, Gaia DR2 1304445275047376640, PG 1631+267, GALEX J163349.3+263258, UCAC2 41208062, PG1631+266
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 16 33 49.33 | 16 33 49.33 (0.02) | ||
| Declination | 26 32 59.11 | 26 32 58.61 (0.03) | ||
| Spectral type | sdB+G | sdB+G | ||
| 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] | 0.49 (0.05) | 0.57 (0.03) | |
| Distance | [pc] | 2060.58 (193) | 1755.93 (102) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -0.598 (0.07) | -0.565 (0.03) | |
| Proper motion (declination) | [mas/yr] | -9.304 (0.08) | -9.316 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | 15.40 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.98 (0.09) | 15.98 (0.09) | ||
| H magnitude | 16.16 (0.3) | 16.16 (0.3) | ||
| K magnitude | 15.60 (0.2) | 15.60 (0.2) | ||
| u magnitude | 15.10 (0.004) | |||
| g magnitude | 15.18 (0.004) | |||
| r magnitude | 15.63 (0.004) | |||
| i magnitude | 15.93 (0.005) | |||
| z magnitude | 16.23 (0.008) | |||
| G magnitude | 15.43 (0.0006) | 15.41 (0.003) | ||
| BP magnitude | 15.25 (0.005) | |||
| RP magnitude | 15.63 (0.003) | |||
| Pan g magnitude | 15.26 (0.002) | |||
| Pan r magnitude | 15.65 (0.004) | |||
| Pan i magnitude | 15.96 (0.004) | |||
| Pan z magnitude | 16.21 (0.003) | |||
| Pan y magnitude | 16.37 (0.005) | |||
| E(B-V) | 0.030 | |||
* 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.