Sunspot drawing of 1981-5-31

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https://doi.org/10.7891/e-manuscripta-139058



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1981-05-31
07:30
Hs 1304.6:126
https://doi.org/10.7891/e-manuscripta-139058
Observer : Roberto Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
254 14 21 D 3 26
256 3 8 J 19 47
260 12 17 C -7 339
261 1 3 J 14 312
263 5 7 B 12 313
264 4 4 B -13 45
265 2 5 C 5 320
266 3 3 B 11 331
267 3 5 B 23 274
9 47 73