Sunspot drawing of 1977-8-9

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https://doi.org/10.7891/e-manuscripta-98823



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1977-08-09
09:00
Hs 1304.5:6364
https://doi.org/10.7891/e-manuscripta-98823
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
87 34 D 23.5 327.6
88 2 A -20.8 282.2
2 36