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 Lake (Arizona) Luna Lake (Arizona) Luna Lake is a natural body of water that covers approximately of land. It is located about three miles (5 km) southeast of Alpine, Arizona, at the elevation of , and is the centerpiece of the Luna Lake Wildlife Area. Luna Lake has the distinction of being part of the San Francisco River, flowing easterly into New Mexico, then south, and west into the Gila River (in Arizona). The headwaters are north of the other main mountain tributary to the Gila, the Blue River of Arizona. Luna Lake lies at on the Apache-Sitgreaves National Forests, as such