HD 70573 b is a superjovian planet orbiting the youngest RV host star HD 70573 approximately 149 light-years away in the constellation of Hydra. The discovery of the planet is important because it enables the study of debris disks around young stars in relation to presence of planets.
Discovery | |
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Discovered by | Setiawan et al. |
Discovery date | March 19, 2007 |
Detection method | radial velocity |
Orbital characteristics | |
Apastron | 2.50 AU (374,000,000 km) |
Periastron | 1.02 AU (153,000,000 km) |
Semi-major axis | 1.76 ± 0.05 AU (263,300,000 ± 7,500,000 km) |
Eccentricity | 0.4 ± 0.1 |
Orbital period (sidereal) | 851.8 ± 11.6 d 2.332 y |
Time of periastron | 2,452,106.54 ± 25.72 |
Argument of periastron | 269.6 ± 14.3 |
Semi-amplitude | 149 |
Star | HD 70573 |