%0 Journal Article
%T “Double dawn”eclipse and the rotational variation of the earth<br>“Double dawn” eclipse and the rotational variation of the earth
%A ZHANG Peiyu HAN Yanben
%A <br>
%J 科学通报(英文版)
%D 2000
%I 
%X A record of “double dawn” at State Zheng in the first year of the reign of King Yi in Western Zhou Dynasty in the chronicle “Bamboo Annals” (Zhushu Jinian) is discussed. We think that it may be a record of an annular solar eclipse happening in 899 BC. The record and the  T, which describes the secular variation of the earth’s rotation, are analyzed and discussed.
%K solar eclipse
%K earth’
%K s rotation<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=6F3BB94CA288A9CC&yid=9806D0D4EAA9BED3&vid=94E7F66E6C42FA23&iid=708DD6B15D2464E8&sid=BB44F42BE8AE7430&eid=243DE6042D93E88B&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=0&reference_num=6