All names: BPS CS 22947-0115, Gaia DR2 6658153139435783424, Gaia DR3 6658153139435783424, GALEX J191522.7-501918, 2MASS J19152277-5019173, TIC 158343496, BPSCS22947-115
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 19 15 22.75 | 19 15 22.77 (0.03) | ||
| Declination | -50 19 17.72 | -50 19 17.58 (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] | 0.94 (0.07) | 0.93 (0.04) | |
| Distance | [pc] | 1066.33 (79) | 1079.68 (50) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 4.747 (0.09) | 4.708 (0.04) | |
| Proper motion (declination) | [mas/yr] | 2.822 (0.07) | 2.866 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | 15.10 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.65 (0.06) | 15.65 (0.06) | ||
| H magnitude | 15.94 | |||
| K magnitude | 15.26 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.07 (0.0009) | 15.05 (0.003) | ||
| BP magnitude | 14.84 (0.009) | |||
| RP magnitude | 15.33 (0.002) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.047 | |||
* 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.