Sunspot drawing of 1971-7-21

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https://doi.org/10.7891/e-manuscripta-96888



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1971-07-21
06:00
Hs 1304.5:4517
https://doi.org/10.7891/e-manuscripta-96888
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
205 3 J 15.0 61.8
206 16 C 5.3 30.4
207 3 J 9.9 12.1
213 20 B 12.8 350.4
216 12 D 7.7 19.6
217 5 C 7.8 359.6
218 3 B 15.1 336.9
219 1 A 11.3 305.8
220 1 A 15.7 292.5
9 64