http://arxiv.org/abs/1812.01733
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 Spain (nowadays, the National Astronomical Observatory) from 1952 until 1986 has been recovered. Moreover, a machine-readable version of this catalog has been made available. We have recovered abundant metadata and studied the reliability of this dataset by comparing it with other sunspot catalogs.
A. Aparicio, L. Lefèvre, M. Gallego, et. al.
Thu, 6 Dec 18
46/52
Comments: 21 pages, 10 figures, accepted for publication in Solar Physics
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