All names: Gaia EDR3 4440839576673984768, PG 1647+056, TIC 271090792, 2MASS J16501846+0532559, UCAC2 33772779, GSC 00392-00718, PG1647+056, Balloon 115051005, Gaia DR2 4440839576673984768, GALEX J165018.5+053256, Gaia DR3 4440839576673984768
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 16 50 18.46 (0.03) | 16 50 18.47 | 16 50 18.46 (0.03) | ||
| Declination | 05 32 55.81 (0.02) | 05 32 56.97 | 05 32 56.02 (0.02) | ||
| Spectral type | sdB+K8 | sdB | |||
| Effective temperature | [K] | 33600.0 (900) | |||
| log(g) | [cgs] | 5.95 (0.1) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 1.24 (0.03) | 1.25 (0.05) | 1.24 (0.03) | |
| Distance | [pc] | 804.38 (22) | 798.79 (30) | 804.38 (22) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -0.727 (0.03) | -0.846 (0.07) | -0.727 (0.03) | |
| Proper motion (declination) | [mas/yr] | -12.805 (0.03) | -12.946 (0.06) | -12.805 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.60 (0.009) | ||||
| V magnitude | 14.77 (0.009) | ||||
| R magnitude | 14.83 (0.005) | ||||
| I magnitude | 14.86 (0.02) | ||||
| J magnitude | 15.30 (0.06) | 15.30 (0.06) | |||
| H magnitude | 15.01 (0.1) | 15.01 (0.1) | |||
| K magnitude | 15.32 (0.2) | 15.32 (0.2) | |||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 14.73 (0.003) | 14.75 (0.0005) | 14.73 (0.003) | ||
| BP magnitude | 14.62 (0.003) | 14.56 (0.009) | |||
| RP magnitude | 14.93 (0.004) | 14.92 (0.002) | |||
| Pan g magnitude | 14.61 (0.002) | ||||
| Pan r magnitude | 14.96 (0.003) | ||||
| Pan i magnitude | 15.27 (0.002) | ||||
| Pan z magnitude | 15.52 (0.004) | ||||
| Pan y magnitude | 15.67 (0.004) | ||||
| E(B-V) | 0.085 | ||||
* 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.