Sunspot drawing of 1977-6-17

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https://doi.org/10.7891/e-manuscripta-98648



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1977-06-17
07:15
Hs 1304.5:6313
https://doi.org/10.7891/e-manuscripta-98648
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
53 3 J -22.0 3.0
1 3