Sunspot drawing of 1981-7-31

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https://doi.org/10.7891/e-manuscripta-139174



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1981-07-31
08:15
Hs 1304.6:182
https://doi.org/10.7891/e-manuscripta-139174
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
353 31 32 E -11 287
354 1 3 J -19 283
356 19 18 C 12 276
357 5 10 J -12 277
358 1 3 J -3 273
359 8 6 C -5 251
364 23 20 D 15 217
367 2 2 B -5 316
369 8 6 B 19 218
370 1 1 A 9 186
371 17 18 C -7 296
11 116 119