A Sunspot Catalog for the Period 1952 – 1986 from Observations Made at the Madrid Astronomical Observatory
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DOI: 10.1007/s11207-018-1387-1
Abstract: Sunspot catalogs are very useful for studying the solar activity of the recent past. In this context, a catalog covering more than three solar cycles made by the astronomers of the Madrid Astronomical Observatory in… read more here.
Keywords: madrid astronomical; 1952 1986; catalog; astronomical observatory ... See more keywords