Sunspot drawing of 1971-5-9

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https://doi.org/10.7891/e-manuscripta-96688



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1971-05-09
09:30
Hs 1304.5:4449
https://doi.org/10.7891/e-manuscripta-96688
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
138 50 E 12.3 269.2
139 3 J 10.8 253.4
145 7 D 4.9 189.0
146 6 D 3.3 156.2
4 66