Sunspot drawing of 1969-12-21

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https://doi.org/10.7891/e-manuscripta-95982



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1969-12-21
09:15
Hs 1304.5:4036
https://doi.org/10.7891/e-manuscripta-95982
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
506 15 C -12.7 91.4
507 4 A 4.9 88.0
511 5 J 9.9 78.8
513 22 D 12.1 62.9
516 24 D -10.2 64.3
517 11 D 10.8 8.7
518 3 B -27.0 91.2
519 16 D -13.2 7.2
520 2 A -4.1 359.1
521 6 B -2.8 345.2
10 108