Comparison of the variations of sunspot number, number of sunspot groups, and sunspot area, 1875-2013 /

Bibliographic Details

Main Author:	Wilson, Robert M. (Author)
Corporate Author:	United States. National Aeronautics and Space Administration (sponsoring body.)
Format:	Government Document eBook
Language:	English
Published:	Huntsville, Alabama : National Aeronautics and Space Administration, Marshall Space Flight Center, April 2014.
Series:	NASA technical paper ; 2014-218192.
Subjects:	Sunspot cycle. Sunspots. Error analysis. Minima.
Online Access:	https://purl.fdlp.gov/GPO/gpo54398 http://purl.fdlp.gov/GPO/gpo54398