All names: SBSS 1656+600, TIC 199713273, Gaia DR3 1437842041522004992, 2MASS J16565016+5955418, WISE J165650.21+595541.5, PG 1656+600, UCAC4 750-051595, GALEX J165650.1+595541, Gaia EDR3 1437842041522004992, WISEA J165650.19+595541.5, Gaia DR2 1437842041522004992, PG1656+600
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 16 56 50.17 (0.04) | 16 56 50.17 | 16 56 50.18 (0.04) | ||
| Declination | 59 55 41.40 (0.04) | 59 55 41.99 | 59 55 41.54 (0.04) | ||
| Spectral type | sdB | sdB1VIIIHe0 | |||
| 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] | 0.65 (0.04) | 0.65 (0.06) | 0.65 (0.04) | |
| Distance | [pc] | 1526.95 (84) | 1531.86 (141) | 1526.95 (84) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -5.172 (0.05) | -5.244 (0.1) | -5.172 (0.05) | |
| Proper motion (declination) | [mas/yr] | -8.38 (0.05) | -8.51 (0.1) | -8.38 (0.05) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.88 (0.06) | ||||
| V magnitude | 16.03 (0.01) | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 16.49 (0.1) | 16.49 (0.1) | |||
| H magnitude | 16.55 | ||||
| K magnitude | 16.34 | ||||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 16.07 (0.003) | 16.09 (0.001) | 16.07 (0.003) | ||
| BP magnitude | 15.95 (0.005) | 15.90 (0.01) | |||
| RP magnitude | 16.33 (0.008) | 16.33 (0.009) | |||
| Pan g magnitude | 15.93 (0.007) | ||||
| Pan r magnitude | 16.31 (0.002) | ||||
| Pan i magnitude | 16.65 (0.002) | ||||
| Pan z magnitude | 16.91 (0.004) | ||||
| Pan y magnitude | 17.10 (0.01) | ||||
| 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.