Sunspot drawing of 1964-11-21

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https://doi.org/10.7891/e-manuscripta-94110



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1964-11-21
10:00
Hs 1304.5:2450
https://doi.org/10.7891/e-manuscripta-94110
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
78 3 J 18.9 141.0
80 2 A 34.9 124.4
81 2 A -3.9 93.4
3 7