Sunspot drawing of 1981-2-25

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https://doi.org/10.7891/e-manuscripta-139046



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1981-02-25
08:00
Hs 1304.6:53
https://doi.org/10.7891/e-manuscripta-139046
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
86 4 7 C 13 183
90 28 32 D 11 198
92 4 11 H -18 133
93 67 46 E -16 102
95 1 3 J -8 99
96 9 9 B 15 100
97 4 4 B -7 112
98 18 25 H -12 77
99 2 4 J -16 73
9 137 141