Sunspot drawing of 1971-5-31

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https://doi.org/10.7891/e-manuscripta-96845



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1971-05-31
07:45
Hs 1304.5:4468
https://doi.org/10.7891/e-manuscripta-96845
Observer : Araldo Pittini
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
163 17 G 10.6 337.2
164 5 C -8.1 28.0
166 7 C 9.3 328.7
167 4 A 13.8 273.9
168 3 A 8.6 267.5
169 4 B -21.2 18.7
6 40