Sunspot drawing of 1987-9-9

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https://doi.org/10.7891/e-manuscripta-143047



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1987-09-09
10:00
Hs 1304.6:2011
https://doi.org/10.7891/e-manuscripta-143047
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
91 1 1 A -25 5
92 44 52 D -22 340
95 3 5 B -26 278
96 3 7 C 28 247
4 51 65