Radial velocity Radial velocity The radial velocity of an object with respect to a given point is the rate of change of the distance between the object and the point. That is, the radial velocity is the component of the object's velocity that points in the direction of the radius connecting the object and the point. In astronomy, the point is usually taken to be the observer on Earth, so the radial velocity then denotes the speed with which the object moves away from or approaches the Earth. In astronomy, radial velocity is often measured to the first order of approximation by
Must Be a Reason Why included on Ward's third studio album, "Obsession". The single was announced for release in January 2011, but prior to its release, Ward was dropped from his record label, Syco Records, preventing the release occurring. However, Pearl's record label, Simply Delicious, offered to release the single on Ward's behalf if he let Pearl be credited as the main vocalist. Ward agreed, and thus, the track was remixed by producer Guy Kastav, and prepared for release in August 2011. The single was later issued across Europe on October 3, 2011, with Italy being the only country to receive a physical release. The