All names: 2MASS J19302004-1903551, WISEA J193020.04-190355.1, Gaia DR3 4179369045803815808, DENIS J193020.0-190354, UCAC2 24475825, GALEXJ19303-1903, TIC 122144416, UCAC4 355-186044, WISE J193020.05-190355.1, GALEX J193019.9-190354, Gaia DR2 4179369045803815808
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 19 30 19.98 | 19 30 20.04 (0.03) | ||
| Declination | -19 03 54.62 | -19 03 55.27 (0.02) | ||
| 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] | 0.92 (0.05) | 1.03 (0.03) | |
| Distance | [pc] | 1090.04 (57) | 973.99 (31) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 6.971 (0.09) | 6.978 (0.04) | |
| Proper motion (declination) | [mas/yr] | -5.291 (0.07) | -5.446 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.09 (0.01) | |||
| V magnitude | 14.33 (0.01) | |||
| R magnitude | 14.49 (0.1) | |||
| I magnitude | 14.43 (0.03) | |||
| J magnitude | 14.68 (0.04) | 14.68 (0.04) | ||
| H magnitude | 14.71 (0.05) | 14.71 (0.05) | ||
| K magnitude | 14.85 (0.1) | 14.85 (0.1) | ||
| u magnitude | ||||
| g magnitude | 14.05 (0.01) | |||
| r magnitude | 14.53 (0.01) | |||
| i magnitude | 14.80 (0.01) | |||
| z magnitude | ||||
| G magnitude | 14.26 (0.002) | 14.23 (0.003) | ||
| BP magnitude | 14.08 (0.01) | |||
| RP magnitude | 14.40 (0.007) | |||
| Pan g magnitude | 14.14 (0.006) | |||
| Pan r magnitude | 14.45 (0.005) | |||
| Pan i magnitude | 14.77 (0.002) | |||
| Pan z magnitude | 14.93 (0.003) | |||
| Pan y magnitude | 15.12 (0.007) | |||
| E(B-V) | 0.099 | |||
* 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.