Sunspot drawing of 1971-1-4

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https://doi.org/10.7891/e-manuscripta-96791



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1971-01-04
08:45
Hs 1304.5:4346
https://doi.org/10.7891/e-manuscripta-96791
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
537 6 B 12.5 155.1
541 3 J 9.5 165.9
544 5 J 21.8 97.2
545 11 C 2.8 87.5
1 2 B 19.3 109.5
2 1 A -13.6 120.4
3 1 A -10.8 108.5
4 17 E -6.1 6.0
5 3 C 10.4 5.3
9 49