visual magnitude
(astronomy) The apparent magnitude of a star in the central part of the spectrum of visible light
A certainty of unknown magnitude, consequence, structure, and probability characteristics; something that we don't know that we know.
plural of blue-green alga
Showing anger or indignation, especially at something unjust or wrong.
望遠鏡のカタログにはその星の視等級が4.8と記載されており、暗い空の下では肉眼でも容易に見えます。
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