Celestial mechanics fix" method used anciently with numbers. Research Artwork Course notes Associations Simulations 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
Luna (goddess) "Carmen Saeculare", performed in 17 BC, Horace invokes her as the "two-horned queen of the stars" ("siderum regina bicornis"), bidding her to listen to the girls singing as Apollo listens to the boys. Varro categorized Luna and Sol among the visible gods, as distinguished from invisible gods such as Neptune, and deified mortals such as Hercules. She was one of the deities Macrobius proposed as the secret tutelary of Rome. In Imperial cult, Sol and Luna can represent the extent of Roman rule over the world, with the aim of guaranteeing peace. Luna's Greek counterpart was Selene. In Roman art