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单词
mean place
释义
mean place
mean place
See mean equator and equinox.
mean place
[
′mēn ′plās
]
(astronomy)
The position of a star on the celestial sphere as it would be observed from the center of the sun, referred to the mean celestial equator and celestial equinox for the beginning of the year of observation.
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更新时间:2025/5/26 4:19:27