Sunspot drawing of 1981-7-17

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https://doi.org/10.7891/e-manuscripta-139161



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1981-07-17
09:00
Hs 1304.6:171
https://doi.org/10.7891/e-manuscripta-139161
Observer : Roberto Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
322 1 2 A 20 119
324 45 36 D -8 107
327 25 21 D -28 99
333 12 12 G 23 108
336 6 7 C 15 49
337 10 10 C -10 48
339 2 3 J -19 37
341 16 18 C -9 95
342 4 6 B 15 15
344 5 6 C 7 72
345 10 8 B -13 46
346 1 3 J 10 8
347 3 3 B 13 69
13 140 135