All names: Gaia DR2 6440375345222603264, UCAC4 126-180409, Gaia DR3 6440375345222603264, EC 19342-6458, 2MASS J19390099-6451488, GALEX J193901.0-645149, TIC 339262037, EC19342-6458
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 19 39 00.88 | 19 39 00.98 (0.02) | ||
| Declination | -64 51 48.67 | -64 51 48.93 (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] | 0.63 (0.05) | 0.61 (0.04) | |
| Distance | [pc] | 1584.03 (130) | 1642.58 (98) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 15.672 (0.07) | 15.608 (0.03) | |
| Proper motion (declination) | [mas/yr] | -3.738 (0.07) | -3.748 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.23 (0.02) | |||
| V magnitude | 15.33 (0.01) | |||
| R magnitude | 15.85 (0.2) | |||
| I magnitude | ||||
| J magnitude | 15.80 (0.09) | 15.80 (0.09) | ||
| H magnitude | 16.11 (0.2) | 16.11 (0.2) | ||
| K magnitude | 15.23 | |||
| u magnitude | ||||
| g magnitude | 15.11 (0.01) | |||
| r magnitude | 15.51 (0.01) | |||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.31 (0.0008) | 15.29 (0.003) | ||
| BP magnitude | 15.15 (0.007) | |||
| RP magnitude | 15.48 (0.003) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.053 | |||
* 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.