Sunspot drawing of 1981-6-8

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https://doi.org/10.7891/e-manuscripta-139186



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1981-06-08
12:30
Hs 1304.6:134
https://doi.org/10.7891/e-manuscripta-139186
Observer : Roberto Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
272 10 10 C -8 224
275 10 16 C 12 174
276 4 5 B 24 272
277 5 4 A -12 223
4 29 35