TIMING RECORDS OF ANCIENT LUNAR ECLIPSES IN CHINA AND LONG-TERM VARIATION OF THE EARTH'S SPIN SPEED

YANBEN RAN; PEIYU ZHANG

논문 상세보기

TIMING RECORDS OF ANCIENT LUNAR ECLIPSES IN CHINA AND LONG-TERM VARIATION OF THE EARTH'S SPIN SPEED KCI 등재 SCOPUS

YANBEN RAN, PEIYU ZHANG

언어ENG
URLhttps://db.koreascholar.com/Article/Detail/387958

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천문학회지 (Journal of The Korean Astronomical Society)

제29권 제S호 (1996.12)
pp.439-440

한국천문학회 (Korean Astronomical Society)

초록

The Chinese ancient accounts of timing observations of 48 lunar eclipses and the secular variation of the Earth's spin speed are discussed. A series of ΔT expressing the secular deceleration of the Earth's rotation was obtained. The average increase rate of length of the day is about 1.5 milliseconds per century.

키워드

Earth's rotation lunar eclipse

저자

YANBEN RAN(Beijing Astronomical Observatory, Chinese Academy of Sciences)
PEIYU ZHANG(Purple Mountain Astronomical Observatory, Chinese Academy of Sciences)

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