The old G3V star Kepler-10 is known to host two transiting planets, the ultra-short-period super-Earth Kepler-10 b (P b = 0.837 d; R b = 1.47 R ⊕) and the long-period sub-Neptune Kepler-10 c (P c = 45.294 d; R c = 2.35 R ⊕), and a non-transiting planet that causes variations in the Kepler-10 c transit times. Measurements of the mass of Kepler-10 c

Close-binary central stars of planetary nebulae offer a unique tool with which to study the critical and yet poorly understood common-envelope phase of binary stellar evolution. Furthermore, as the nebula itself is thought to comprise the ionised remnant of the ejected common envelope, such planetary nebulae can be used to directly probe the mass

We report the discovery of a brown dwarf candidate around evolved star BD +48 873. Companion is located in eccentric orbit at around 5 AU semi-major axis, which places it in an exciting location at the edge of the theorized brown dwarf desert. We present the radial velocity data analysis results of brown dwarf parameters and the host star's