31. The projection of the Earth's equator onto the celestial sphere is called the celestial equator. 32. The zones of the celestial sphere repeated on a larger scale those of the terrestrial sphere. 33. The celestial sphere is an imaginary globe of infinite size with the Earth at its center. 34. At the equator you see all of the celestial sphere , at either pole only one half. 35. :: Based on the theories of his predecessors, Zhang Heng systematically developed the celestial sphere theory. 36. The observatory was fitted with an armillary sphere which is a model of the celestial sphere . 37. These two articles dealing with the celestial spheres formed a major element in Logicus's controversial edits. 38. Components of proper motion on the Celestial sphere . 39. The M�bius transformations are the conformal transformations of the Riemann sphere ( or celestial sphere ). 40. For navigators near the equator celestial navigation is simplified since the whole celestial sphere is exposed.
