All names: Balloon 83500008, FBS B 582, TIC 298339406, GALEX J165054.4+353342, Gaia DR2 1327056662952543232, Gaia DR3 1327056662952543232, FBS 1649+356, PG 1649+356, KUV 16491+3539, SDSS J165054.38+353342.3, KUV 433-11, GALEX J165054.4+353341, PG1649+356, 2MASS J16505439+3533421
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 16 50 54.37 | 16 50 54.38 (0.03) | ||
| Declination | 35 33 42.17 | 35 33 42.32 (0.03) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | 33020.0 (610) | ||
| log(g) | [cgs] | 5.82 (0.1) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.78 (0.04) | 0.86 (0.03) | |
| Distance | [pc] | 1288.99 (74) | 1157.94 (45) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 2.073 (0.07) | 2.199 (0.04) | |
| Proper motion (declination) | [mas/yr] | 4.873 (0.1) | 5.238 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.01 | |||
| V magnitude | 15.49 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.73 (0.08) | 15.73 (0.08) | ||
| H magnitude | 15.79 (0.1) | 15.79 (0.1) | ||
| K magnitude | 15.55 | |||
| u magnitude | 14.56 (0.004) | 14.54 (0.01) | ||
| g magnitude | 14.81 (0.004) | 14.82 (0.01) | ||
| r magnitude | 15.32 (0.004) | 15.33 (0.01) | ||
| i magnitude | 15.70 (0.004) | 15.71 (0.01) | ||
| z magnitude | 16.04 (0.007) | 16.02 (0.02) | ||
| G magnitude | 15.09 (0.0007) | 15.08 (0.003) | ||
| BP magnitude | 14.85 (0.007) | |||
| RP magnitude | 15.38 (0.002) | |||
| Pan g magnitude | 14.89 (0.004) | |||
| Pan r magnitude | 15.35 (0.002) | |||
| Pan i magnitude | 15.71 (0.002) | |||
| Pan z magnitude | 15.99 (0.003) | |||
| Pan y magnitude | 16.19 (0.005) | |||
| E(B-V) | 0.022 | |||
* 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.