Sunspot drawing of 1977-10-25

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https://doi.org/10.7891/e-manuscripta-98663



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1977-10-25
07:30
Hs 1304.5:6429
https://doi.org/10.7891/e-manuscripta-98663
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
137 6 C -24.0 84.0
140 2 A 16.4 349.5
141 10 B 20.7 330.1
3 18