Last Updated
：2025/11/22
optical double
Noun
Japanese Meaning
天文学：光学的錯覚によりまるで二重星のように見える星。実際にはそれぞれが互いに大きな距離を置いて存在している可能性がある。
（ plural ）
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(astronomy) A star that appears as a double due to an optical illusion; in reality, the stars may be far apart from each other.
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optical double
Through the backyard telescope, we discovered that the faint star was actually an optical double — two unrelated stars aligned by chance.
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Through the backyard telescope, we discovered that the faint star was actually an optical double — two unrelated stars aligned by chance.
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