seasonal constellation
plural of Laumann
The fact of being easy, or easily done; absence of difficulty, simplicity. / Dexterity of speech or action; skill, talent.
An antihypertensive drug.
(astronomy) A constellation that is only above the horizon (and thus visible) for part of the year.
多くのアマチュア天文家は、特定の季節にしか見えない星座が地平線上に昇るのを待ってから冬の観測夜を計画します。
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