Sunspot drawing of 1987-5-30

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https://doi.org/10.7891/e-manuscripta-142912



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1987-05-30
07:30
Hs 1304.6:1917
https://doi.org/10.7891/e-manuscripta-142912
Observer : Marco Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
50 11 10 C 22 251
1 11 10