Sunspot drawing of 1983-11-17

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https://doi.org/10.7891/e-manuscripta-140552



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1983-11-17
13:00
Hs 1304.6:861
https://doi.org/10.7891/e-manuscripta-140552
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
301 18 25 D -12 5
302 16 13 C -13 331
2 34 38