1、Astronomers have divided the celestial sphere into a total of 88 regions.
天文學(xué)家已把天球劃分為88個(gè)區(qū)域。

2、Its intersection with the celestial sphere will be a great circle -the ecliptic.
它與天球相交處形成一個(gè)大圓-黃道。

3、The point on the celestial sphere that is directly above the observer.
天頂在觀測(cè)者正上方的天體上的一點(diǎn)

4、Shanghai Celestial Sphere Macheinary Machinery Co., Ltd.
上海天球機(jī)械有限公司！