All names: EC 21053-4059, BPS CS 22937-0037, EC21053-4059, TIC 115175941, 2MASS J21083322-4047276, GALEX J210833.2-404727, Gaia DR3 6581733164293658752, Gaia DR2 6581733164293658752, BPS CS 30492-0063
| Parameter | Unit | Geier 2020 | Simbad |
|---|---|---|---|
| Right ascension | 21 08 33.24 | 21 08 33.23 (0.04) | |
| Declination | -40 47 26.99 | -40 47 27.61 (0.03) | |
| Spectral type | sdB | sdB | |
| 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] | -0.00 (0.09) | 0.14 (0.05) |
| Distance | [pc] | 7272.73 (2608) | |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | -1.273 (0.1) | -1.327 (0.04) |
| Proper motion (declination) | [mas/yr] | -7.15 (0.1) | -7.265 (0.04) |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | 15.75 | ||
| V magnitude | 15.76 | ||
| R magnitude | |||
| I magnitude | |||
| J magnitude | 15.87 (0.08) | 15.87 (0.08) | |
| H magnitude | 16.02 (0.2) | 16.02 (0.2) | |
| K magnitude | 15.72 (0.2) | 15.72 (0.2) | |
| u magnitude | |||
| g magnitude | |||
| r magnitude | |||
| i magnitude | |||
| z magnitude | |||
| G magnitude | 15.70 (0.0007) | 15.69 (0.003) | |
| BP magnitude | 15.63 (0.004) | ||
| RP magnitude | 15.76 (0.003) | ||
| Pan g magnitude | |||
| Pan r magnitude | |||
| Pan i magnitude | |||
| Pan z magnitude | |||
| Pan y magnitude | |||
| E(B-V) | |||
* 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.