Celestial mechanics Celestial mechanics Celestial mechanics is the branch of astronomy that deals with the motions of objects in outer space. Historically, celestial mechanics applies principles of physics (classical mechanics) to astronomical objects, such as stars and planets, to produce ephemeris data. As an astronomical field of study, celestial mechanics includes the sub-fields of orbital mechanics, which deals with the launching and orbits artificial satellites, and lunar theory, a specialty which deals with the complications of the orbit of the Moon. Modern celestial mechanics tends to divide between five broad fields of study: All of the above fields overlap, but are sometimes
The Celestial Sphere The Celestial Sphere The Celestial Sphere is a large scale oratorio for chorus and orchestra by Charles Wuorinen, commissioned by Augustana College (Rock Island, Illinois) for the 100th anniversary of the Handel Oratorio Society, which gave the premiere performance on 25 April 1981 under the direction of Donald Morrison, conductor. The composition was composed 2 January - 9 September 1980, in Baltimore, Binghamton (NY), Buffalo (NY), Gardiner (MA), Iowa City (IA), Jackson Hole (WY), Los Angeles, Middle Valley (NJ), New York City, Rock Island (IL), and San Francisco. The score is published by C.F. Peters, EP 66851. Texts from William