• 基本释义

1.A celestial pole.
天体的极地收藏指正
2.The constellation that includes the southern celestial pole.
南极座包括南天极的星座收藏指正
3.the celestial pole above the northern hemisphere; near Polaris.
在北半天球的天极；靠近北斗星的天极。收藏指正
4.A small periodic motion of the celestial pole of Earth with respect to the pole of the ecliptic.
章动地球天极就黄道极而言的小的周期性转动收藏指正
5.either of two galaxies orbiting the Milky Way; visible near the south celestial pole.
围绕银河系转动的两个星系之一；在南极附近看得见。收藏指正
6.A star of the second magnitude, at the end of the handle of the Little Dipper and almost at the north celestial pole.
北极星第二星的光度中的一颗星，位于小熊星座把柄的末端，几乎位于北天极收藏指正
7.Till 1995, the deviations of the origin of right ascension and the celestial pole from their originally expected positions are no less than 0. 4mas.
至1995年，IERS天球参考架的赤经零点和天极与各自预期位置的偏差不于0．4mas。收藏指正
8.The maintenance of orientation of the international Earth Rotation Service(IERS)celestial reference frames from 1992 to 1995 are analyzed in this paper. In combination with the maintenance for years from 1988 to 1992, it is concluded that there are detectable variations in the orientation of IERS celestial reference frames from 1988 to 1995. The biggest shifts of the origin of right ascension and of the celestial pole are about 0. 4mas.
本文分析了1992年至1995年期间国际地球自转服务（IERS）天球参考架的指向维持情况，结合1988年至1992年的指向维持情况指出，该参考架在1988年至1995年期间历年的指向均存在显著变化，赤经零点和天极的最大年度漂移约为0．4mas。收藏指正
9.On the Celestial Reference Pole
关于天球参考极收藏指正
10.Since the adoption of the IAU 1980 theory of nutation, the reference pole is the celestial ephemeris pole (CEP).
1984年起，采用 IAU 1980章动理论，选取天球历书极作为参考极。收藏指正
尝试查询