Sunspot drawing of 1967-7-21

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https://doi.org/10.7891/e-manuscripta-95000



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1967-07-21
09:45
Hs 1304.5:3284
https://doi.org/10.7891/e-manuscripta-95000
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
271 4 B -18.0 249.2
276 5 J -22.2 160.1
277 10 C -29.3 178.0
280 2 A 19.0 180.2
281 4 B -7.7 153.2
282 4 H 25.3 108.6
6 29