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- A celestial body that gives off or reflects light. 自然光源发光或反射光的天体
- A celestial body, such as the sun or moon. 天体，如太阳或月球
- The period during which a celestial body makes a similar rotation. 天体自转一周的时间天体做类似自转的一段时间
- It is not just a celestial body in the university faraway. 它可不仅是宇宙中一个遥远的天体。
- An object,such as a celestial body,that gives light. 发光体发光的物体，比如天体
- The apparent path of a celestial body as it rises above and falls below the horizon. 周日弧，夜间弧天体升起或落下地平线时的明显路径
- The position of a celestial body when it is separated from another by a45= angle. 八分圆一个天体当它成45°角与另一天体分离时所处的位置
- The emergence of a celestial body from eclipse or occultation. 出凌天体从蚀或掩星中的出现。
- The angular distance of a celestial body below the horizon. 俯角天体在地平线下的角距离。
- The passage of a celestial body across the observer's meridian. 凌日，一个天体经过观测者的最高点。
- An object, such as a celestial body, that gives light. 发光体发光的物体，比如天体
- The path of a celestial body or an artificial satellite as it revolves around another body. 运行轨道天体绕另一天体或人造卫星绕一天体旋转所运行的轨道
- The obscuring of a celestial body by another or by the shadow of another. 掩始一个天体被另一个天体或另一个天体的阴影遮掩
- The point on the orbit of a celestial body that is farthest from the sun. 远日点在天体运行轨道上距离太阳最远的点
- The angular distance of a celestial body north or south of the ecliptic. 黄纬黄道以南或以北天体的用角度量的距离
- The highest point above the observer's horizon attained by a celestial body. 天体的最高点通过天体到达的在观测者视平线之上的最高点
- The highest point reached in the apparent motion of a celestial body. 天顶一个天体的明显运动达到最高点
- Astronomy A celestial body that revolves around another; a satellite. 行星，卫星：围绕另外一个天体转动的天体；卫星
- The natural force of attraction exerted by a celestial body, such as Earth, upon objects at or near its surface, tending to draw them toward the center of the body. 重力天体如地球，所施加的自然吸引力，如地球，对处于或接近其表面的物体有将它们拉向其中心的趋势
- The scientific study of the origin,history,and structure of the solid matter of a celestial body. 天体学对天体的固体物质的来源、历史和结构的科学研究。
