Sunspot drawing of 1971-3-31

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https://doi.org/10.7891/e-manuscripta-96669



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1971-03-31
10:00
Hs 1304.5:4418
https://doi.org/10.7891/e-manuscripta-96669
Observer : Araldo Pittini
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
98 3 J -14.8 67.6
101 4 A 25.0 37.0
102 20 C -19.2 32.7
106 10 B 12.8 5.1
107 2 B -14.0 27.0
5 39