Sunspot drawing of 1975-7-20

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https://doi.org/10.7891/e-manuscripta-98052



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1975-07-20
06:30
Hs 1304.5:5738
https://doi.org/10.7891/e-manuscripta-98052
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
59 3 J -10.4 215.8
61 9 C -6.4 167.5
64 2 A -3.4 203.4
3 14