Sunspot drawing of 1987-9-2

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https://doi.org/10.7891/e-manuscripta-142998



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1987-09-02
13:00
Hs 1304.6:2004
https://doi.org/10.7891/e-manuscripta-142998
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
90A 1 1 A -22 39
91 1 3 A -24 5
92 16 32 D -22 345
93 2 2 A -16 104
4 20 38