Sunspot drawing of 1975-9-20

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https://doi.org/10.7891/e-manuscripta-98091



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1975-09-20
07:00
Hs 1304.5:5793
https://doi.org/10.7891/e-manuscripta-98091
Observer : Araldo Pittini
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
89 22 B 8.9 87.1
90 3 B 3.3 86.6
91 4 A -16.3 59.3
92 6 A 5.5 25.6
4 35