Sunspot drawing of 1961-10-18

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https://doi.org/10.7891/e-manuscripta-92646



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1961-10-18
12:45
Hs 1304.5:1493
https://doi.org/10.7891/e-manuscripta-92646
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
295 4 H 17.2 246.5
298 6 B 10.7 199.3
301 2 A -4.0 208.4
302 3 J 17.9 150.0
303 2 A -16.1 148.4
5 17