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单词
parallactic ellipse
释义
parallactic ellipse
parallactic ellipse
See annual parallax.
parallactic ellipse
[
¦par·ə¦lak·tik i′lips
]
(astronomy)
An annual apparent elliptical course of a celestial body on the celestial sphere about its mean position; caused by the elliptical orbital motion of the earth.
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更新时间:2025/10/17 9:52:10