Acceleration of the earth's rotation obtained from records on occultation of stars by the moon before 600 A.D. in China.

Details Acceleration of the earth's rotation obtained from records on occultation of stars by the moon before 600 A.D. in China. Acceleration of the earth's rotation obtained from records on occultation of stars by the moon before 600 A.D. in China.

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986acasn..27...69l&link_type=abstract

Acta Astron. Sin., Vol. 27, No. 1, p. 69 - 79

Astronomy and Astrophysics

Astronomy

2

Earth Rotation:Secular Variations

Scientific paper

From 83 carefully selected records of occultations of stars by the moon
(186 - 567 A.D.), the author obtained the acceleration ω=
-49.7±4.2 sec/century2 or Δt =
5.42x103sec for the weighted mean epoch 423 A.D. He adopts
lunar tidal acceleration n= -22arcsec.4/century2.

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