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Evidence for a sunspot in A.D. 939 in an Arabian Source

by: JM Vaquero, MC Gallego
Solar Physics, Vol. 206, No. 1. (3 March 2002), pp. 209-211.

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Abstract  It is the purpose of this paper to present evidence concerning the appearance of a sunspot in A.D. 939 observed by Arabs from the Iberian Peninsula. The sunspot record appears in the Arab source known as al-Muqtabis V.


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