HD 70573 b

HD 70573 b
Discovery
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

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.

References[]

Setiawan; Weise, P.; Henning, Th.; Launhardt, R.; Müller, A.; Rodmann, J. (2007). "Evidence for a Planetary Companion around a Nearby Young Star" (abstract). The Astrophysical Journal Letters. 660 (2): L145–L148. arXiv:0704.0441. Bibcode:2007ApJ...660L.145S. doi:10.1086/518213. web preprint

External links[]

"Notes for planet HD 70573 b". The Extrasolar Planets Encyclopaedia.
"HD 70573". Exoplanets. Archived from the original on 2009-11-25. Retrieved 2008-08-02.

Coordinates: 08^h 22^m 49.9514^s, +01° 51′ 33.552″

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Discovery
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