Relative Sunspot Numbers for 1989
Peter O. Taylor
P. O. Box 5685, Athens, GA
Received: 29 January
Final values of American
Relative Sunspot Numbers for 1989 are provided. The values are based on
observations made by members of the international network of American Sunspot
Program collaborators and the AAVSO Solar Division.
Link to ADS abstract, article and citation information
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