Sunspot drawing of 1971-7-13

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https://doi.org/10.7891/e-manuscripta-96910



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1971-07-13
08:00
Hs 1304.5:4509
https://doi.org/10.7891/e-manuscripta-96910
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
202 17 C -7.7 125.5
204 6 A -12.2 93.5
205 8 C 15.0 59.7
206 12 D 5.6 27.8
4 43