Sunspot drawing of 1961-5-17

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https://doi.org/10.7891/e-manuscripta-92552



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1961-05-17
07:00
Hs 1304.5:1349
https://doi.org/10.7891/e-manuscripta-92552
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
126 1 3 J 2.4 162.5
132 2 4 C 8.5 66.4
137 8 3 B -14.2 72.4
3 11 10