HD 11506 c

HD 11506 c is an extrasolar planet located approximately 167 light years away in the constellation of Cetus, orbiting the 8th magnitude G-type main sequence star HD 11506. It is the second planet in this system, and its discovery was first claimed in 2009 by using Bayesian analysis on data previously collected by the N2K Consortium.^[2] However, in 2015 additional radial velocity measurements showed that the planetary parameters were significantly different from those determined by Bayesian analysis.^[3]

HD 11506 c

Discovery
Discovered by	Giguere et al.
Discovery date	2015
Orbital characteristics
Semi-major axis	0.774±0.038 AU
Eccentricity	0.193±0.038[1]
Orbital period (sidereal)	223.41±0.32[1] d
Time of periastron	2463230±11[1]
Argument of periastron	259±16[1]
Semi-amplitude	12.1±0.41[1]
Star	HD 11506

See also

• HD 11506 b