Sunspot drawing of 1966-9-12

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https://doi.org/10.7891/e-manuscripta-94847



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1966-09-12
07:45
Hs 1304.5:3021
https://doi.org/10.7891/e-manuscripta-94847
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
166 10 E -21.2 59.8
168 3 C 21.1 352.2
169 2 A -15.2 38.5
171 3 B 9.2 1.4
4 18