All names: TIC 159341647, 2MASS J16555297+3208254, GALEX J165552.9+320824, Gaia DR2 1313457147225909376, SDSS J165552.92+320825.0, Gaia DR3 1313457147225909376, PG 1654+322, PG1654+322
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 16 55 52.93 | 16 55 52.92 (0.03) | ||
| Declination | 32 08 25.41 | 32 08 25.08 (0.03) | ||
| Spectral type | He-sdO | sdOC | ||
| 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] | 0.31 (0.05) | 0.31 (0.04) | |
| Distance | [pc] | 3242.54 (527) | 3178.64 (393) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -3.219 (0.08) | -3.244 (0.04) | |
| Proper motion (declination) | [mas/yr] | -0.754 (0.09) | -0.68 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 16.24 | |||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.11 (0.09) | 16.11 (0.09) | ||
| H magnitude | 16.25 (0.2) | 16.25 (0.2) | ||
| K magnitude | 15.96 (0.2) | 15.96 (0.2) | ||
| u magnitude | 14.69 (0.004) | 14.71 (0.02) | ||
| g magnitude | 15.12 (0.003) | 15.14 (0.01) | ||
| r magnitude | 15.64 (0.004) | 15.64 (0.02) | ||
| i magnitude | 16.03 (0.004) | 16.04 (0.02) | ||
| z magnitude | 16.36 (0.009) | 16.36 (0.02) | ||
| G magnitude | 15.39 (0.0009) | 15.38 (0.003) | ||
| BP magnitude | 15.14 (0.009) | |||
| RP magnitude | 15.70 (0.004) | |||
| Pan g magnitude | 15.21 (0.003) | |||
| Pan r magnitude | 15.65 (0.003) | |||
| Pan i magnitude | 16.04 (0.002) | |||
| Pan z magnitude | 16.33 (0.004) | |||
| Pan y magnitude | 16.53 (0.006) | |||
| E(B-V) | 0.023 | |||
* 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.