Sunspot drawing of 1971-12-27

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https://doi.org/10.7891/e-manuscripta-96876



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1971-12-27
08:30
Hs 1304.5:4663
https://doi.org/10.7891/e-manuscripta-96876
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
363 2 A -5.8 134.5
364 9 C -14.5 112.0
369 20 C -15.5 96.6
370 4 B -10.8 90.3
375 10 B -13.6 43.2
376 3 A 15.3 106.0
377 1 A 10.9 25.3
378 3 A 21.9 331.6
379 3 J -4.1 328.2
9 55