All names: 2MASS J22521971-6315548, GALEX J225219.5-631553, TIC 403317759, EC 22491-6331, EC22491-6331, Gaia DR2 6394226540100907904, Gaia DR3 6394226540100907904, BPS CS 22938-0044
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 22 52 19.81 | 22 52 19.76 (0.03) | ||
| Declination | -63 15 53.89 | -63 15 54.75 (0.03) | ||
| Spectral type | He-sdO | sdOC7.5VIIHe40 | ||
| 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] | 0.39 (0.05) | 0.46 (0.04) | |
| Distance | [pc] | 2552.32 (333) | 2190.10 (189) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 7.072 (0.07) | 6.928 (0.03) | |
| Proper motion (declination) | [mas/yr] | -5.018 (0.09) | -4.849 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.09 | |||
| V magnitude | 15.40 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.06 (0.08) | 16.06 (0.08) | ||
| H magnitude | 16.79 | |||
| K magnitude | 16.75 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.30 (0.0006) | 15.28 (0.003) | ||
| BP magnitude | 15.06 (0.008) | |||
| RP magnitude | 15.60 (0.003) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.015 | |||
* 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.