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Polar alignment : ウィキペディア英語版 | Polar alignment Polar alignment is the act of aligning the rotational axis of a telescope's equatorial mount or a sundial in parallel with that of the Earth. There are various ways to achieve this. == Alignment methods == The method to use differs depending on whether the alignment is taking place in daylight or in night. Furthermore, the method differs if the alignment is done in the Northern Hemisphere or Southern Hemisphere. The purpose of the alignment also must be considered. For example, the demand for accuracy is much more significant in astrophotography than in occasional stargazing.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Polar alignment」の詳細全文を読む
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