celestial sphere

英 [səˈlestiəl sfɪə(r)]

美 [səˈlestʃl sfɪr]

天球

英英释义

noun

• the apparent surface of the imaginary sphere on which celestial bodies appear to be projected
  Synonym:sphereempyreanfirmamentheavensvault of heavenwelkin

双语例句

• Or approximately, it may be defined as the intersection of the diurnal mean direction of rotation axis with the celestial sphere.
  近似地，可以认为天极是自转轴的周日平均方向与天球的交点。
• Model of the celestial sphere; used by early astronomers to determine the positions of stars.
  天球的模型；早期天文学家用的测定星体位置的仪器。
• A Method for Scanning the Celestial Sphere using Real-coded Genetic Algorithm
  基于实值编码GA的卫星巡天扫描方法
• Analyzing the Difficulties in the Celestial Sphere's Coordinate System
  天球坐标系的难点解析
• D; ( 3) establishing theoretical relations between polar motion of rotational axis, polar motion and precession-nutation of either celestial sphere reference axis;
  建立了自转轴极移和任一天球参考轴极移和章动之间的理论关系；
• These records can be quantified to apparent scales ( angular diameter) according to the Model of Celestial Sphere used by Chinese ancients. Then we can reduce the size to a brightness on the basis of some "standard points".
  这些记录可以按古人目视观测天象的天球模型进行视大小（角直径）的量化，进而可以用一些已知亮度的流星记录为标准点，将其归算为亮度。
• A point in the heavens ( on the celestial sphere).
  天上的一个点（在天球上）。
• A great circle on the celestial sphere that passes through both celestial poles.
  通过天体球两极与天体赤道成直角相切的大圈。
• Through the analysis of the origin of the Chi System, the author has also obtained that the semi-diameter of the celestial sphere is about 13 meters.
  通过对尺寸系统起源的分析，认为古人裸眼目视观测时的天球半径约为13米上下。
• C++ software is used to classify tri-stars of the guide stars in celestial sphere and implement the method. It is concluded that the SOFM network can reflect the complicated information among star patterns better.
  应用C++软件编程，对全天导航星星表的星信息进行了星三角采样、分类，指出SOFM网络可以很好地提取、反映星表中的复杂信息。