HD 101930, also known as Gliese 3683, is an orange hued star located in the southern constellation Centaurus. It has an apparent magnitude of 8.21, making it faintly visible in binoculars but not to the naked eye. The system is located relatively close at a distance of 98 light years but is receding with a heliocentric radial velocity of . A 2007 multicity survey found a co-moving companion located away, making it a binary star. It has a class of M0-1 and a mass of . Characteristics HD 101930 has a stellar classification of K2 V+, indicating that it is an ordinary K-type main-sequence star. It has a current mass of and is said to be 5.4 billion years old, which is slightly older than the Sun. The object has 87% the radius of the Sun and an effective temperature of . When combined, these parameters yield a luminosity 43% that of the Sun from its photosphere. As expected with planetary hosts, HD 101930 is metal enriched, having a metallicity 26% above solar levels. The star's projected rotational velocity is similar to the Sun's, having a value of . Planetary system In 2005, the discovery of a planet orbiting the star was announced. This is another discovery using the radial velocity method with the HARPS spectrograph. See also HD 93083 HD 102117 List of extrasolar planets HARPS spectrograph References External links K-type main-sequence stars 101930 057172 Centaurus (constellation) Planetary systems with one confirmed planet 3683 BD-57 4096