All names: BPSCS22937-22, Gaia EDR3 6775680658881588352, TIC 159640970, 2MASS J21114362-3815077, GALEX J211143.6-381506, Gaia DR2 6775680658881588352, Gaia DR3 6775680658881588352, EC 21085-3827, BPS CS 22937-0022, BPS CS 30492-0042, UCAC4 259-190119
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 21 11 43.60 (0.04) | 21 11 43.62 | 21 11 43.61 (0.04) | ||
| Declination | -38 15 08.06 (0.03) | -38 15 07.58 | -38 15 07.86 (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] | 0.76 (0.05) | 0.89 (0.07) | 0.76 (0.05) | |
| Distance | [pc] | 1321.00 (91) | 1126.00 (86) | 1321.00 (91) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -9.936 (0.05) | -10.061 (0.09) | -9.936 (0.05) | |
| Proper motion (declination) | [mas/yr] | -12.327 (0.05) | -12.264 (0.08) | -12.327 (0.05) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.00 (0.02) | ||||
| V magnitude | 15.22 (0.04) | ||||
| R magnitude | 15.73 (0.1) | ||||
| I magnitude | |||||
| J magnitude | 15.96 (0.07) | 15.96 (0.07) | |||
| H magnitude | 16.15 (0.2) | 16.15 (0.2) | |||
| K magnitude | 17.06 | ||||
| u magnitude | |||||
| g magnitude | 15.04 (0.02) | ||||
| r magnitude | 15.51 (0) | ||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 15.25 (0.003) | 15.26 (0.0007) | 15.25 (0.003) | ||
| BP magnitude | 15.08 (0.003) | 15.00 (0.007) | |||
| RP magnitude | 15.58 (0.004) | 15.58 (0.002) | |||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| E(B-V) | 0.029 | ||||
* 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.