Sunspot drawing of 1976-2-21

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https://doi.org/10.7891/e-manuscripta-98597



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1976-02-21
07:15
Hs 1304.5:5911
https://doi.org/10.7891/e-manuscripta-98597
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
6 4 B -3.6 172.6
1 4