Sunspot drawing of 1971-8-25

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https://doi.org/10.7891/e-manuscripta-96898



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1971-08-25
09:00
Hs 1304.5:4552
https://doi.org/10.7891/e-manuscripta-96898
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
252 3 J 13.3 317.4
255 64 F -12.3 271.6
256 5 C -5.9 233.6
257 6 B 12.1 287.9
258 1 A 18.8 284.7
5 79