Sunspot drawing of 1983-10-17

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https://doi.org/10.7891/e-manuscripta-140484



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1983-10-17
09:30
Hs 1304.6:836
https://doi.org/10.7891/e-manuscripta-140484
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
275 23 40 D 21 76
278 1 3 J -12 25
279 7 12 C -5 16
280 4 4 A -16 331
4 35 59