Sunspot drawing of 1988-4-15

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https://doi.org/10.7891/e-manuscripta-143819



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1988-04-15
09:30
Hs 1304.6:2179
https://doi.org/10.7891/e-manuscripta-143819
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
71 4 6 C -31 345
72 1 3 J -18 332
73 12 17 C 17 330
76 20 28 D -14 316
79 46 62 F 22 277
80 10 14 C -33 331
81 2 3 B -24 283
82 10 16 D 25 240
8 105 149