Sunspot drawing of 1967-9-15

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https://doi.org/10.7891/e-manuscripta-95199



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1967-09-15
08:30
Hs 1304.5:3333
https://doi.org/10.7891/e-manuscripta-95199
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
350 3 A -21.0 226.4
355 17 C 11.5 187.7
358 3 J -29.1 147.6
3 23