Sunspot drawing of 1971-8-28

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https://doi.org/10.7891/e-manuscripta-96924



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1971-08-28
07:00
Hs 1304.5:4555
https://doi.org/10.7891/e-manuscripta-96924
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
255 39 F -12.7 270.4
256 5 J -4.1 233.1
259 1 A 1.9 198.8
3 45