Sunspot drawing of 1966-8-18

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https://doi.org/10.7891/e-manuscripta-94743



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1966-08-18
06:45
Hs 1304.5:2997
https://doi.org/10.7891/e-manuscripta-94743
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
142 3 A 30.8 10.0
143 9 B 21.1 350.0
146 4 A 27.8 319.3
147 4 A 13.6 253.9
4 20