Sunspot drawing of 1981-12-17

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https://doi.org/10.7891/e-manuscripta-139328



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1981-12-17
09:00
Hs 1304.6:295
https://doi.org/10.7891/e-manuscripta-139328
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
644 1 3 J 18 282
645 5 11 D -15 274
647 2 5 H -7 260
649 5 12 D -8 290
653 6 10 C 11 201
655 1 3 J -8 243
656 4 5 B 8 221
657 3 4 B -9 184
658 1 1 A -12 155
9 28 54