ファーストライト
1. First light (astronomy)In astronomy, first light is the first use of a telescope (or, in general, a new instrument) to take an astronomical image after it has been constructed. This is often not the first viewing using the telescope; optical tests have likely already been performed during daylight to adjust the components. The first light image is normally of little scientific interest and is of poor quality since the various telescope elements are yet to be adjusted for optimum efficiency.
Read “First light (astronomy)” on English Wikipedia
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Read “First light (astronomy)” on English Wikipedia
Read “ファーストライト” on Japanese Wikipedia
Read “First light (astronomy)” on DBpedia
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