Sunspot drawing of 1971-10-13

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https://doi.org/10.7891/e-manuscripta-96670



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1971-10-13
07:30
Hs 1304.5:4599
https://doi.org/10.7891/e-manuscripta-96670
Observer : Araldo Pittini
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
287 1 A 11.6 319.3
288 1 A 8.7 27.3
289 4 A 11.3 295.5
290 11 B -13.1 328.4
4 17