All names: GALEXJ19059-4438, WISEA J190555.48-443840.1, TIC 61029108, UCAC4 227-185020, Gaia DR3 6711368192251441408, Gaia EDR3 6711370739172390272, Gaia DR2 6711368192251441408, 2MASS J19055547-4438400, GALEX J190555.7-443838, DENIS J190555.4-443840, UCAC2 12800357, WISE J190555.48-443840.0
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 19 05 47.72 (0.6) | 19 05 55.77 | 19 05 55.48 (0.04) | ||
| Declination | -44 39 45.48 (0.5) | -44 38 38.34 | -44 38 40.05 (0.04) | ||
| Spectral type | He-sdOB | sdOC8.5VIHe39 | |||
| 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] | 1.66 (0.7) | 0.86 (0.07) | 0.83 (0.04) | |
| Distance | [pc] | 603.76 (249) | 1165.64 (94) | 1198.90 (60) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 1.715 (0.8) | 4.012 (0.1) | 4.106 (0.04) | |
| Proper motion (declination) | [mas/yr] | -8.626 (0.7) | 0.127 (0.1) | 0.247 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 13.46 (0.02) | ||||
| V magnitude | 13.67 (0.01) | ||||
| R magnitude | |||||
| I magnitude | 13.97 (0.04) | ||||
| J magnitude | 14.31 (0.03) | 14.31 (0.03) | |||
| H magnitude | 14.44 (0.06) | 14.44 (0.06) | |||
| K magnitude | 14.45 (0.08) | 14.45 (0.08) | |||
| u magnitude | |||||
| g magnitude | 13.47 (0.02) | ||||
| r magnitude | 13.89 (0.02) | ||||
| i magnitude | 14.15 (0.06) | ||||
| z magnitude | |||||
| G magnitude | 20.34 (0.009) | 13.64 (0.001) | 13.62 (0.003) | ||
| BP magnitude | 20.79 (0.2) | 13.42 (0.02) | |||
| RP magnitude | 19.76 (0.09) | 13.90 (0.004) | |||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| E(B-V) | 0.063 | ||||
* 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.