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单词 anomalistic year
释义

anomalistic year

noun Astronomy
A year measured between successive perihelia of the earth (approximately 365 1/4 days).There is also the anomalistic year, although this is even less used than the sidereal year....
  • On average, the anomalistic year is about 25 minutes longer than the tropical year, so the date of perihelion slowly shifts over time, regressing by about 1 full day every 58 years.
  • An anomalistic lunar month is the lunar equivalent to the solar anomalistic year which indicates the passage of the sun around the earth from perigee to perigee.
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更新时间:2025/3/23 10:05:13