Sunspot drawing of 1988-6-28

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https://doi.org/10.7891/e-manuscripta-143648



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1988-06-28
10:00
Hs 1304.6:2242
https://doi.org/10.7891/e-manuscripta-143648
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
137 6 15 C -24 88
138 6 8 J -17 30
140 33 80 E -20 6
141 1 4 J 26 351
142 11 23 D 13 359
5 57 130