HD 9446 [SEP] constellation
HD 9446
HD 9446 is a star located about 164 light-years away in the constellation of Triangulum. It is a G-type main sequence star with a stellar classification of G5V. The physical properties this star appear similar to the Sun, making it a candidate as a solar analog. However, the measured abundance of elements with more mass than helium is above the accepted range. The amount of activity measured in the chromosphere corresponds to a star with a rotation period of about 10 days.
Planetary system.
period of 267 days. It is a red giant of spectral type M3.5-8e, lying around 960 light-years away. HD 12545, also known as XX Trianguli, is
an orange giant of spectral type K0III around 520 light-years distant with a visual magnitude of 8.42. A huge starspot larger than the diameter of the sun was detected on its surface in 1999 by astronomers using Doppler imaging.
Two star systems appear to have planets. HD 9446 is a sun-like star around 171 light-