天体

Disappear beyond the horizon; of celestial bodies such as the sun and the moon.

在地平线以下消失；指太阳和月亮等天体。

The maximum parallax observed when the celestial body is at the horizon.

当天体在地平面上时观测到的最大视差。

The appearance of the sun or other celestial body above the horizon.

开，启：太阳或其他天体出现在地平线之上

Along the celestial equator from the observer's ''.

从观测者所在的子午线到给定天体的子午线沿着天赤道的角''。

The celestial equivalent is measured in degrees north or south from the celestial equator and is called the declination of the body.

天球纬度是从天赤道向南或向北以度数来表示，叫做天体的偏角δ。

Nceton University (1991); B.Sc. in Space Physics, University of Science and

中国科技大学空间物理学学士(1985年)，美国普林斯顿大学天体物理学硕士1991年

Know astronomical unit and light year are used for expressing the distance between celestial bodies.

知道天文单位和光年是用来丈量天体之间距离的单位。

The magnitude, abbreviated as mag , is an astronomical unit describing the brightness of a celestial object.

星等 是描述天体光度的天文单位。

"I would say the ice in the vicinity of the North Pole is primed for melting, and an ice-free North Pole is a good possibility," Sheldon Drobot, a climatologist at the Colorado Center for Astrodynamics Research at the University of Colorado, said by email.

科罗拉多大学天体动力学研究中心的气候学家谢而登卓伯特在一封邮件中提到：&我认为北极点周边的冰盖很有可能融化，出现一个&无冰&的北极。&

This is the website of Astrobiology, which provides overall information of astrobiology and related researches and other activities.

这是NASA天体生物学的网站，提供有关太空生物学的综合信息以及相关的研究和其他活动。

What are your goals and strategies for growth?

你的成长目标和策略是什么？

And unto the angel of the church in Sardis write; These things saith he that hath the seven irits of God, and the seven star I know thy works, that thou hast a name that thou livest, and art dead.

3：1 你要写信给撒狄教会的使者，说，那有神的七灵和七星的，说，我知道你的行为，按名你是活的，其实是死的。