HD 213240 [SEP] constellation
HD 213240
HD 213240 is a yellow main sequence star located approximately 133 light years (41 parsecs) away in the constellation Grus. The magnitudes were m=6.80 and M=3.75. It is a metal-rich star and more evolved than our sun. Its age has been calculated as being anywhere from 2.7 to 4.6 billion years. A red dwarf companion star was detected in 2005 with a projected separation of 3898 AU.
Planetary system.
The Geneva extrasolar planet search team discovered a planet orbiting this star in 2001.
HD 212301 b
HD 212301 b is an extrasolar planet located approximately 172 light-years (53 parsecs) away in the constellation of Octans, orbiting the star HD 212301. It has an orbital period of 2.25 Earth days. The orbital distance is 0.0341 astronomical units or 5.10 gigameters.
On August 22, 2005, taking place in ESO La Silla Observatory in Chile, the planet was discovered by Lo Curto who used the HARPS spectrometer.
See also.
- HD 213240 b