A Check on the Variations of Earth's Rotation with an Ancient Solar Eclipse

Details A Check on the Variations of Earth's Rotation with an Ancient Solar Eclipse A Check on the Variations of Earth's Rotation with an Ancient Solar Eclipse

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003chjaa...3..569h&link_type=abstract

Chinese Journal of Astronomy & Astrophysics, Vol. 3, No. 6, p. 569-575

Astronomy and Astrophysics

Astrophysics

Solar Eclipse, Earth Rotation

Scientific paper

We address the relation between an ancient total eclipse, which occurred on A.D.1542 August 11 and the variation of Earth's rotation. The total eclipse was recorded in some ancient Chinese books, especially in local chronicles. Some of the documents include useful information for determining the location of the totality zone. The parameters of the eclipse are calculated by using the DE406 Ephemeris. A high-precision value of Δ T which expresses the variation of the Earth's rotation, of about 300˜ 380 s, is obtained.

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