All names: UCAC4 187-199956, 2MASS J19410442-5246572, BPS CS 22896-0128, Gaia DR2 6642621850497112192, TIC 166224562, GALEX J194104.3-524657, Gaia DR3 6642621850497112192, EC19371-5253, EC 19371-5253
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 19 41 04.34 | 19 41 04.41 (0.04) | ||
| Declination | -52 46 56.82 | -52 46 57.18 (0.03) | ||
| Spectral type | He-sdO | sdOC7VIIHe39 | ||
| 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] | 0.31 (0.09) | 0.29 (0.05) | |
| Distance | [pc] | 3277.61 (949) | 3497.73 (603) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -0.477 (0.1) | -0.331 (0.05) | |
| Proper motion (declination) | [mas/yr] | -3.966 (0.09) | -4.05 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.45 | |||
| V magnitude | 15.60 | |||
| R magnitude | 15.80 (0.2) | |||
| I magnitude | ||||
| J magnitude | 16.21 (0.1) | 16.21 (0.1) | ||
| H magnitude | 16.89 | |||
| K magnitude | 15.95 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.67 (0.001) | 15.66 (0.003) | ||
| BP magnitude | 15.43 (0.01) | |||
| RP magnitude | 15.93 (0.005) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.037 | |||
* 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.