Sunspot drawing of 1972-7-18

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https://doi.org/10.7891/e-manuscripta-97068



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1972-07-18
08:15
Hs 1304.5:4812
https://doi.org/10.7891/e-manuscripta-97068
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
230 5 A 8.6 244.1
231 9 J -10.2 239.8
234 22 C -10.1 225.8
236 3 A -22.7 258.9
237 1 A -8.6 168.5
5 40