Sunspot drawing of 1971-3-28

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https://doi.org/10.7891/e-manuscripta-96808



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1971-03-28
07:30
Hs 1304.5:4415
https://doi.org/10.7891/e-manuscripta-96808
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
96 3 J -8.4 126.5
98 5 C -13.6 65.6
101 3 J 25.0 38.9
102 21 D -18.9 32.2
4 32