Sunspot drawing of 1983-9-30

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https://doi.org/10.7891/e-manuscripta-140541



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1983-09-30
08:45
Hs 1304.6:820
https://doi.org/10.7891/e-manuscripta-140541
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
261 27 36 D -19 267
264 1 1 A 11 242
2 28 37