Sunspot drawing of 1971-8-24

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https://doi.org/10.7891/e-manuscripta-96651



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1971-08-24
07:00
Hs 1304.5:4551
https://doi.org/10.7891/e-manuscripta-96651
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
252 3 J 13.3 317.0
255 69 F -12.0 270.9
256 8 C -5.4 233.4
257 5 B 12.5 287.7
4 85