All names: GALEX J194749.3-543344, BPSCS22896-183, Gaia DR2 6641433278427809280, 2MASS J19474946-5433437, EC 19438-5441, Gaia DR3 6641433278427809280, TIC 320591159, BPS CS 22896-0183
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 19 47 49.44 | 19 47 49.46 (0.03) | ||
| Declination | -54 33 43.67 | -54 33 43.74 (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] | 0.79 (0.07) | 0.95 (0.05) | |
| Distance | [pc] | 1268.71 (109) | 1053.74 (54) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 3.012 (0.09) | 2.7 (0.04) | |
| Proper motion (declination) | [mas/yr] | 3.605 (0.07) | 3.937 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.13 | |||
| V magnitude | 14.50 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.10 (0.04) | 15.10 (0.04) | ||
| H magnitude | 15.21 (0.08) | 15.21 (0.08) | ||
| K magnitude | 15.33 (0.1) | 15.33 (0.1) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 14.36 (0.0007) | 14.34 (0.003) | ||
| BP magnitude | 14.12 (0.01) | |||
| RP magnitude | 14.66 (0.002) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.036 | |||
* 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.