All names: GALEX J221604.5-171947, Gaia DR2 6825916554879185664, Gaia EDR3 6825916554879185664, Gaia DR3 6825916554879185664, TIC 409119442, EC 22133-1734, GALEXJ22160-1719, 2MASS J22160447-1719473, BPS CS 22892-0051
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 22 16 04.50 (0.04) | 22 16 04.52 | 22 16 04.49 (0.04) | ||
| Declination | -17 19 47.37 (0.04) | -17 19 47.25 | -17 19 47.33 (0.04) | ||
| Spectral type | He-sdO | sdOC7VIIHe40 | |||
| 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] | 0.63 (0.04) | 0.52 (0.06) | 0.63 (0.04) | |
| Distance | [pc] | 1592.61 (114) | 1929.76 (222) | 1592.61 (114) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 11.695 (0.04) | 11.713 (0.1) | 11.695 (0.04) | |
| Proper motion (declination) | [mas/yr] | -2.651 (0.04) | -2.356 (0.1) | -2.651 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.30 | ||||
| V magnitude | 14.66 | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 15.41 (0.05) | 15.41 (0.05) | |||
| H magnitude | 15.45 (0.1) | 15.45 (0.1) | |||
| K magnitude | 15.68 (0.2) | 15.68 (0.2) | |||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 14.62 (0.003) | 14.63 (0.001) | 14.62 (0.003) | ||
| BP magnitude | 14.44 (0.004) | 14.39 (0.01) | |||
| RP magnitude | 14.94 (0.004) | 14.94 (0.003) | |||
| Pan g magnitude | 14.45 (0.003) | ||||
| Pan r magnitude | 14.90 (0.004) | ||||
| Pan i magnitude | 15.28 (0.002) | ||||
| Pan z magnitude | 15.58 (0.004) | ||||
| Pan y magnitude | 15.79 (0.0008) | ||||
| E(B-V) | 0.026 | ||||
* 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.