Sunspot drawing of 1961-7-28

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https://doi.org/10.7891/e-manuscripta-92644



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1961-07-28
07:30
Hs 1304.5:1416
https://doi.org/10.7891/e-manuscripta-92644
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
209 33 23 C 7.5 262.3
214 1 1 A -0.1 199.0
217 2 1 A 18.1 289.3
218 2 2 B 17.5 224.0
219 4 4 C 14.1 147.6
5 42 31