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The observatory installed a new transit instrument to precisely measure star positions as they crossed the meridian.
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The observatory installed a new transit instrument to precisely measure star positions as they crossed the meridian.
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Related words
transit instrument
Noun
Japanese Meaning
経線に設置され、固定された東西軸を中心に回転することで、天体の通過（＝天体が観測点の上を通る瞬間）を観測するために用いられる天文望遠鏡。
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