Difference between revisions of "Sunspot of May 10, 28 BCE"

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Latest revision as of 07:28, 11 May 2016

The Sunspot of May 10, 28 BCE was a sunspot observed and documented during the Han dynasty in China.

It is among the first documented sunspots.

Description

Han shu : Wuxing zhi: zia ch. 27:

Emperor Cheng of Han, first year of the Heping reign period, third month .... At sunrise the Sun was yellow. There was a black vapor as large as a coin at its center.

Source: East-Asian Archaeoastronomy: Historical Records of Astronomical Observations By Zhenoao Xu, W. Pankenier, Yaotiao Jiang @ books.google.com

See also

External links