Sunspot drawing of 2017-5-17

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https://doi.org/10.7891/e-manuscripta-159454



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2017-05-17
06:45
Hs 1304.6:10932
https://doi.org/10.7891/e-manuscripta-159454
Observer : Marco Cagnotti
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
41 2 4 C 10.4 67.3
1 2 4