All names: 2MASS J00391914-1906194, TIC 98673236, WISE J003919.12-190619.1, KUV00368-1923, USNO-B1.0 0708-00007662, KUV 00368-1923, Gaia DR3 2363149933210675584, GALEX J003919.0-190619, Gaia DR2 2363149933210675584, SMSS J003919.12-190619.4
| Parameter | Unit | Geier 2020 | Simbad |
|---|---|---|---|
| Right ascension | 00 39 19.12 | 00 39 19.13 (0.09) | |
| Declination | -19 06 19.49 | -19 06 19.44 (0.05) | |
| Spectral type | 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] | -0.38 (0.1) | |
| Distance | [pc] | ||
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | 0.01 (0.3) | -0.011 (0.1) |
| Proper motion (declination) | [mas/yr] | -0.016 (0.2) | -0.031 (0.1) |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | 17.40 | ||
| V magnitude | |||
| R magnitude | 17.10 | ||
| I magnitude | |||
| J magnitude | 16.34 (0.09) | 16.34 (0.09) | |
| H magnitude | 16.20 (0.2) | 16.20 (0.2) | |
| K magnitude | 15.57 (0.2) | 15.57 (0.2) | |
| u magnitude | 18.93 (0.2) | ||
| g magnitude | 18.27 (0.2) | ||
| r magnitude | 17.86 (0.1) | ||
| i magnitude | 18.08 (0.1) | ||
| z magnitude | 17.50 (0.1) | ||
| G magnitude | 17.69 (0.002) | 17.67 (0.003) | |
| BP magnitude | 17.84 (0.009) | ||
| RP magnitude | 17.30 (0.009) | ||
| Pan g magnitude | 17.68 (0.008) | ||
| Pan r magnitude | 17.61 (0.006) | ||
| Pan i magnitude | 17.63 (0.007) | ||
| Pan z magnitude | 17.55 (0.01) | ||
| Pan y magnitude | 17.53 (0.03) | ||
| E(B-V) | |||
* 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.