Mu Arae e

Mu Arae e / Sancho
	Mu Arae e rendered by Celestia
Discovery
Discovered by	Butler, Marcy
Discovery site	California, USA
Discovery date	June 13, 2002
Detection method	Radial velocity
Orbital characteristics
Apastron	5.750 AU (860,200,000 km)
Periastron	4.719 AU (706,000,000 km)
Semi-major axis	5.235 AU (783,100,000 km)
Eccentricity	0.0985 ± 0.0627
Orbital period (sidereal)	4205.8 ± 758.9 d; 11.51 y
Time of periastron	2,450,541 ± 96
Argument of periastron	57.6 ± 43.7
Semi-amplitude	18.1 ± 1.1
Star	Mu Arae

Mu Arae e, also known as HD 160691 e, later named Sancho /ˈsæntʃoʊ/, is one of the four extrasolar planets orbiting the star Mu Arae of the constellation Ara.

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