Sunspot drawing of 1977-10-24

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https://doi.org/10.7891/e-manuscripta-98872



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1977-10-24
07:30
Hs 1304.5:6428
https://doi.org/10.7891/e-manuscripta-98872
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
137 10 C -23.9 84.4
139 4 B -25.9 38.4
140 2 A 16.3 348.7
141 1 A 20.1 329.7
4 17