Sunspot drawing of 1966-9-20

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https://doi.org/10.7891/e-manuscripta-94728



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1966-09-20
11:00
Hs 1304.5:3028
https://doi.org/10.7891/e-manuscripta-94728
Observer : Araldo Pittini
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
172 33 H 6.2 255.8
174 46 E 21.5 232.8
176 13 B 17.9 294.0
3 92