Sunspot drawing of 1971-5-6

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https://doi.org/10.7891/e-manuscripta-96897



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1971-05-06
08:00
Hs 1304.5:4446
https://doi.org/10.7891/e-manuscripta-96897
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
135 3 J -5.2 348.1
138 46 D 12.5 270.8
139 3 J 10.5 254.4
143 1 B 16.4 244.9
4 53