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eJAAVSO

Comparing the March 1989 Sunspot Group With Other Great Groups of the Past

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Peter O. Taylor

P. O. Box 8115, Gainesville, FL  32605

 

Received: 23 June 1989

 

Abstract

 

A large sunspot group transited the Sun's disk during March 1989. The cluster is compared

according to size, appearance and intensity of related geomagnetic storm conditions with other

groups which have exhibited maximum areas greater than 3000 millionths solar hemisphere.

 

Link to ADS abstract, article and citation information

 
 
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