Sunspot drawing of 1981-2-28

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https://doi.org/10.7891/e-manuscripta-139191



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1981-02-28
10:00
Hs 1304.6:56
https://doi.org/10.7891/e-manuscripta-139191
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
86 1 3 J 12 185
92 5 13 G -17 134
93 47 42 E -16 100
95 3 2 A -8 99
96 9 7 B 17 100
97 7 10 G -7 112
98 34 28 H -12 77
99 8 6 B -16 73
101 3 2 A 22 98
104 12 16 C -13 49
105 1 3 J -3 36
106 3 2 A -14 126
12 133 134