Sunspot drawing of 1987-8-19

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https://doi.org/10.7891/e-manuscripta-142779



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1987-08-19
07:30
Hs 1304.6:1991
https://doi.org/10.7891/e-manuscripta-142779
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
80 1 4 H -27 281
82 2 10 H -30 245
83 15 23 D -23 237
86 1 1 A 19 228
4 19 38