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
Love Must Be Tough "Love Must Be Tough" was released in Hybrid Stereo SACD format in May 2008, and on vinyl (LDIV012) in September 2008. Love Must Be Tough Love Must Be Tough is Eleanor McEvoy's seventh studio album. Unlike her previous six albums, which, with the exception of a few tracks, were written solely by McEvoy, "Love Must Be Tough" is a mixture of covers/interpretations and self-penned selections. The album's theme of turning 40 amid mid-life crises is exemplified by the opening track, a fresh interpretation of The Rolling Stones song "Mother's Little Helper". The following eleven tracks continue this theme right up