Sunspot drawing of 1968-1-18

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https://doi.org/10.7891/e-manuscripta-95456



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1968-01-18
09:15
Hs 1304.5:3435
https://doi.org/10.7891/e-manuscripta-95456
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
10 11 H 20.2 30.3
14 3 J 7.3 39.4
17 2 A -25.8 307.7
18 4 B 20.9 279.4
19 11 D -15.9 252.2
5 31