Sunspot drawing of 1971-10-11

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https://doi.org/10.7891/e-manuscripta-96680



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1971-10-11
07:30
Hs 1304.5:4597
https://doi.org/10.7891/e-manuscripta-96680
Observer : Araldo Pittini
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
287 3 A 11.7 319.8
288 2 A 10.0 20.3
289 9 B 11.8 297.8
3 14