Sunspot drawing of 1981-2-1

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https://doi.org/10.7891/e-manuscripta-139026



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1981-02-01
09:00
Hs 1304.6:30
https://doi.org/10.7891/e-manuscripta-139026
Observer : Roberto Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
39 33 31 D -12 104
42 18 23 D 15 91
43 41 47 E -11 82
44 8 11 D -17 88
48 3 6 C 14 70
49 10 11 H 19 61
50 3 6 B -8 59
51 3 5 B 14 51
52 3 3 A -17 99
9 122 143