HD 1237 [SEP] constellation
HD 1237
HD 1237 is a binary star system approximately 57 light-years away in the constellation of Hydrus (the Water Snake).
The visible star in the system, A, is considered to be a solar analog due close mass to the sun. HD 1237 differs from the sun in that HD 1237 is much younger, has high metallicity, has much cooler temperature and is in a binary system. As of 2000, it has been confirmed that an extrasolar planet orbits the star. It is of note
the Sun, is chromospherically active, and rotates around its axis more quickly than the Sun.
The secondary star was discovered in 2006 during a deep imaging survey conducted at the European Southern Observatory using the Very Large Telescope. HD 1237 B is a M4 red dwarf star at a projected separation of 68 AU.
Planetary system.
Announced in 2000, the Jovian planet GJ 3021 b (GJ 3021 being an alternate less-used designation for this star) orbits about 0.5 astronomical units from HD 1237 A with a