The HW Vir system contains 1 exoplanet. It is located 560.01 light years away from the solar system.
| Mass | 0.48 solar masses |
| Radius | 0.32 solar radiae |
| Temperature | 8868.67 kelvin |
| Stellar Metallicity | - decimal exponent |
| Age | - billion years |
At more than 50 Earth masses, HW Vir b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 4602.902 Earth masses |
| Density | 13.600 grams per cubic centimeter |
| Radius | 12.300 Earth radiae |
| Semi-major Axis | 4.69 AU |
| Eccentricity | 0.4 |
| Orbital Period | 4640.000 days |
| Discovery Method | Eclipse Timing Variations |
| Discovery Facility | McDonald Observatory |
| Discovery Telescope | MONET/North Telescope |
| Discovery Instrument | Apogee 1k CCD Camera |
| Discovery Date | 2012-07 |
| Reference | Beuermann et al. 2012 |