Magnitude 6.39 Apparent magnitude (V) 6.39 | Constellation Cassiopeia | |
Similar Chi Cassiopeiae, Lambda Cassiopeiae, Omicron Cassiopeiae, Psi Cassiopeiae, Tau Cassiopeiae | ||
HD 220074 is a M2III red giant star located in Cassiopeia.
It had been considered K1V but is now known as M2III due to radius and surface gravity.
Planetary system
From September 2008 to June 2012, the team B.-C. Lee, I. Han, and M.-G. Park observed HD 220074 with "the high-resolution spectroscopy of the fiber-fed Bohyunsan Observatory Echelle Spectrograph (BOES) at Bohyunsan Optical Astronomy Observatory (BOAO)".
In 2012, a long-period, wide-orbiting eccentric planet was deduced by radial velocity. This was published in November, gaining the designation HD 220074 b. Along with HD 208527 b this is one of the first two planets proposed around a red giant.
References
HD 220074 Wikipedia(Text) CC BY-SA