All names: 2MASS J19550718-6959583, TIC 396169034, GALEX J195507.0-695957, Gaia DR2 6423367377809981696, Gaia DR3 6423367377809981696, EC19498-7007, EC 19498-7007
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 19 55 07.21 | 19 55 07.17 (0.03) | ||
| Declination | -69 59 58.49 | -69 59 58.36 (0.04) | ||
| 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] | 0.27 (0.07) | 0.35 (0.05) | |
| Distance | [pc] | 3687.32 (929) | 2844.14 (393) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 2.71 (0.08) | 2.692 (0.04) | |
| Proper motion (declination) | [mas/yr] | -7.312 (0.1) | -7.298 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 16.14 | |||
| V magnitude | 16.19 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.82 (0.2) | 16.82 (0.2) | ||
| H magnitude | 16.20 | |||
| K magnitude | 16.92 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 16.46 (0.001) | 16.43 (0.003) | ||
| BP magnitude | 16.26 (0.009) | |||
| RP magnitude | 16.66 (0.005) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.050 | |||
* 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.