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 Northern Celestial Masters The Northern Celestial Masters The Northern Celestial Masters type of the Way of the Celestial Master () Daoist movement existed in the north of China during the Southern and Northern Dynasties. The Northern Celestial Masters were a continuation of the Way of the Celestial Masters as it had been practiced in Sichuan province by Zhang Lu and his followers. After the community was forced to relocate in 215 CE, a group of Celestial Masters established themselves in Northern China. Kou Qianzhi, from a family who followed the Celestial Master, brought a new version of Celestial Master Daoism to the Northern