All names: WISE J211111.48-480255.8, EC21077-4815, 2MASS J21111148-4802569, TIC 79246796, UCAC4 210-186407, EC 21077-4815, Gaia DR2 6479757549625889536, Gaia DR3 6479757549625889536
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 21 11 11.41 | 21 11 11.46 (0.04) | ||
| Declination | -48 02 56.40 | -48 02 56.77 (0.03) | ||
| Spectral type | He-sdO | sdOC7.5VIIHe39 | ||
| 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] | 0.64 (0.07) | 0.68 (0.05) | |
| Distance | [pc] | 1553.52 (160) | 1463.06 (103) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -2.411 (0.1) | -2.158 (0.04) | |
| Proper motion (declination) | [mas/yr] | -8.412 (0.07) | -8.376 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.06 (0.01) | |||
| V magnitude | 15.29 (0.02) | |||
| R magnitude | 15.82 (0.2) | |||
| I magnitude | ||||
| J magnitude | 16.07 (0.1) | 16.07 (0.1) | ||
| H magnitude | 15.34 | |||
| K magnitude | 15.32 | |||
| u magnitude | ||||
| g magnitude | 15.06 (0.04) | |||
| r magnitude | 15.50 (0.05) | |||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.26 (0.001) | 15.24 (0.003) | ||
| BP magnitude | 15.00 (0.01) | |||
| RP magnitude | 15.54 (0.005) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.018 | |||
* 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.