Sunspot drawing of 1976-8-21

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https://doi.org/10.7891/e-manuscripta-98553



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1976-08-21
07:00
Hs 1304.5:6087
https://doi.org/10.7891/e-manuscripta-98553
Observer : Araldo Pittini
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
49 4 A -2.9 17.2
50 6 J -11.5 265.2
2 10