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
What Must Be Said "After we denounce the exaggeration, after we shake off the unjustified part of the charge, we must listen to these great people. They are not anti-Semites, they are expressing the opinion of many people. Instead of accusing them we should consider what we did that led them to express it. In the same newspaper, Anshel Pfeffer argued that: "Logic and reason are useless when a highly intelligent man, a Nobel laureate no less, does not understand that his membership in an organization that planned and carried out the wholesale genocide of millions of Jews disqualifies him from criticizing the descendants