Sunspot drawing of 1971-10-19

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https://doi.org/10.7891/e-manuscripta-96806



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1971-10-19
07:45
Hs 1304.5:4604
https://doi.org/10.7891/e-manuscripta-96806
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
291 45 D 8.1 210.7
293 2 A 17.2 188.5
2 47