All names: BPSCS22950-61, 2MASS J20215860-1441579, Gaia DR2 6876083181649488000, TIC 206099468, ATO J305.4941-14.6994, Gaia DR3 6876083181649488000, BPS CS 22950-0061
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 20 21 58.64 | 20 21 58.60 (0.04) | ||
| Declination | -14 41 57.99 | -14 41 57.98 (0.02) | ||
| 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] | 0.38 (0.06) | 0.50 (0.05) | |
| Distance | [pc] | 2629.50 (393) | 1988.07 (181) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -9.065 (0.1) | -9.063 (0.05) | |
| Proper motion (declination) | [mas/yr] | -0.105 (0.06) | -0.118 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | 15.40 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.70 (0.07) | 15.70 (0.07) | ||
| H magnitude | 16.12 (0.2) | 16.12 (0.2) | ||
| K magnitude | 16.30 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.38 (0.002) | 15.37 (0.003) | ||
| BP magnitude | 15.23 (0.009) | |||
| RP magnitude | 15.52 (0.007) | |||
| Pan g magnitude | 15.26 (0.001) | |||
| Pan r magnitude | 15.59 (0.007) | |||
| Pan i magnitude | 15.89 (0.006) | |||
| Pan z magnitude | 16.13 (0.006) | |||
| Pan y magnitude | 16.26 (0.01) | |||
| E(B-V) | 0.084 | |||
* 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.