Sunspot drawing of 1971-7-20

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https://doi.org/10.7891/e-manuscripta-96726



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1971-07-20
07:30
Hs 1304.5:4516
https://doi.org/10.7891/e-manuscripta-96726
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
205 4 J 14.7 61.4
206 14 D 5.1 30.1
207 4 C 9.9 11.1
213 28 B 12.2 351.7
216 17 D 7.8 19.6
217 8 C 7.5 360.0
218 1 A 15.5 335.7
7 76