Sunspot drawing of 1978-4-21

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https://doi.org/10.7891/e-manuscripta-98991



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1978-04-21
08:00
Hs 1304.5:6567
https://doi.org/10.7891/e-manuscripta-98991
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
98 5 C 13.4 285.3
101 7 C 18.1 274.3
102 3 J -43.8 241.0
109 9 C -29.1 203.3
110 4 J -29.4 189.2
111 10 B 15.7 186.7
112 22 D 19.9 189.3
113 6 J -20.0 167.4
114 8 B 19.0 261.3
9 74