Sunspot drawing of 1988-4-8

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https://doi.org/10.7891/e-manuscripta-143863



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1988-04-08
07:30
Hs 1304.6:2173
https://doi.org/10.7891/e-manuscripta-143863
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
68 17 24 C 18 32
69 20 26 C 25 38
70 6 6 B 31 4
71 13 14 C -31 347
72 1 3 J -19 332
73 14 17 B 16 328
6 71 90