HD 101930

HD 101930 is an almost 100 light years distant star system in the constellation Centaurus. HD 101930 consists of a main sequence star of spectral type K1 of a red dwarf (HD 101930 B) and an exoplanet (HD 101930 b ) is encircled. The main-sequence star and the red dwarf form a wide binary system with an angular distance of 73 " ( 2200 AU).

The surface temperature of the main component is about 5000 K lower than that of the sun and it is a little less bright and smaller than our Sun. For this reason, the star is expected to be about 25 billion years old.

HD 101930 b

HD 101930 b is the name of the exoplanet, orbiting the central star. He is currently the only exoplanet that could be detected in this star system. He accompanied the main component at a distance of about 0.3 astronomical units and needs for whose orbit is about 70 days. The exoplanet is at least 0.3 times the mass of Jupiter; on the basis of which it is assumed that there is a gas planet. The exoplanet was discovered as part of the HARPS project using the radial velocity method. The discovery was published by Christophe Lovis, Michel Mayor, Francesco Pepe and others in 2005.