Sunspot drawing of 1967-4-28

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https://doi.org/10.7891/e-manuscripta-95089



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1967-04-28
07:30
Hs 1304.5:3206
https://doi.org/10.7891/e-manuscripta-95089
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
163 3 J 22.8 290.9
164 2 A -22.4 290.9
170 26 C 26.1 230.2
176 18 D -18.6 207.0
178 2 A 12.7 183.5
179 14 D -21.5 153.7
180 6 B 31.5 246.7
7 71