All names: TIC 159669717, GALEX J211217.5-382053, Gaia DR2 6775676948029825536, Gaia DR3 6775676948029825536, 2MASS J21121754-3820545, BPS CS 22937-0067, EC 21091-3833, GALEXJ21122-3820
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 21 12 17.51 | 21 12 17.54 (0.01) | ||
| Declination | -38 20 53.33 | -38 20 54.56 (0.01) | ||
| Spectral type | sdB+MS | sdB+F | ||
| 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) | 0.64 (0.02) | |
| Distance | [pc] | 1539.17 (85) | 1563.23 (49) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -10.013 (0.05) | -9.96 (0.02) | |
| Proper motion (declination) | [mas/yr] | -12.443 (0.04) | -12.431 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.97 | |||
| V magnitude | 13.91 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 13.34 (0.02) | 13.34 (0.02) | ||
| H magnitude | 13.13 (0.03) | 13.13 (0.03) | ||
| K magnitude | 13.10 (0.03) | 13.10 (0.03) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 13.81 (0.0003) | 13.80 (0.003) | ||
| BP magnitude | 13.84 (0.004) | |||
| RP magnitude | 13.63 (0.0009) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.028 | |||
* 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.