Sunspot drawing of 1967-7-20

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https://doi.org/10.7891/e-manuscripta-95110



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1967-07-20
07:30
Hs 1304.5:3283
https://doi.org/10.7891/e-manuscripta-95110
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
271 4 B -17.8 249.1
272 3 B -19.5 206.8
276 11 B -22.3 160.6
277 8 B -29.6 176.5
4 26