Sunspot drawing of 1977-11-13

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https://doi.org/10.7891/e-manuscripta-98714



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1977-11-13
08:00
Hs 1304.5:6444
https://doi.org/10.7891/e-manuscripta-98714
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
147 4 C 23.4 135.9
148 5 A -22.5 144.8
149 6 C 37.2 81.6
3 15