中文翻译与英英解释 | 【天文学】时角。
| | | hour: n. 1.小时，钟头。 2.时间，时刻。 3.一小时的行 ... | | angle: n. 〔古语〕钓钩；钓具。 a brother of t ... | |
| the angular distance along the celestial equator from the observer''s meridian to the hour circle of a given celestial body
| | (astronomy) the angular distance of a celestial point measured westward along the celestial equator from the zenith crossing; the right ascension for an observer at a particular location and time of day
同义词：HA,
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| In astronomy and celestial navigation, the hour angle is one of the coordinates used in the equatorial coordinate system to give the direction of a point on the celestial sphere. |
例句与用法 | 1. | the sun's hour angle counts from the middy position and changes 360°per day or 15°per hour.
太阳的时角从中午的位置算起，每天改变360或一小时变化15。
| | 2. | Excess of hour angle increment
时角增量超差
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