Sunspot drawing of 1981-6-7

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https://doi.org/10.7891/e-manuscripta-139135



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1981-06-07
08:30
Hs 1304.6:133
https://doi.org/10.7891/e-manuscripta-139135
Observer : Roberto Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
272 21 24 C -8 225
273 4 5 B 12 204
275 5 9 D 11 175
276 7 7 B 23 272
277 6 5 B -11 225
5 43 50