All names: BPS CS 22950-0010, Gaia EDR3 6874384367465624448, BPSCS22950-10, GALEX J201921.5-154025, Gaia DR2 6874384367465624448, 2MASS J20192161-1540283, Gaia DR3 6874384367465624448, TIC 114664900
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 20 19 21.59 (0.03) | 20 19 21.67 | 20 19 21.61 (0.03) | ||
| Declination | -15 40 28.34 (0.02) | -15 40 28.17 | -15 40 28.34 (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] | 1.83 (0.04) | 1.85 (0.06) | 1.83 (0.04) | |
| Distance | [pc] | 547.77 (11) | 539.20 (16) | 547.77 (11) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -17.996 (0.04) | -18.05 (0.1) | -17.996 (0.04) | |
| Proper motion (declination) | [mas/yr] | 0.03 (0.03) | -0.093 (0.06) | 0.03 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | 13.70 | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 14.14 (0.03) | 14.14 (0.03) | |||
| H magnitude | 14.21 (0.04) | 14.21 (0.04) | |||
| K magnitude | 14.32 (0.06) | 14.32 (0.06) | |||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 13.62 (0.003) | 13.64 (0.0005) | 13.62 (0.003) | ||
| BP magnitude | 13.50 (0.003) | 13.45 (0.006) | |||
| RP magnitude | 13.85 (0.004) | 13.84 (0.001) | |||
| Pan g magnitude | 13.51 (0) | ||||
| Pan r magnitude | 13.86 (0.003) | ||||
| Pan i magnitude | 14.19 (0.003) | ||||
| Pan z magnitude | 14.45 (0.004) | ||||
| Pan y magnitude | 14.60 (0.004) | ||||
| E(B-V) | 0.088 | ||||
* 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.