Sunspot drawing of 1977-10-12

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https://doi.org/10.7891/e-manuscripta-98813



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1977-10-12
07:15
Hs 1304.5:6417
https://doi.org/10.7891/e-manuscripta-98813
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
128 20 D 6.3 206.5
129 6 H 18.6 160.7
2 26