Sunspot drawing of 1983-11-18

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https://doi.org/10.7891/e-manuscripta-140539



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1983-11-18
10:00
Hs 1304.6:862
https://doi.org/10.7891/e-manuscripta-140539
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
301 12 19 C -12 6
302 21 24 B -15 329
303 2 2 A -9 321
3 35 45