Sunspot drawing of 1970-4-22

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https://doi.org/10.7891/e-manuscripta-96513



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1970-04-22
07:00
Hs 1304.5:4128
https://doi.org/10.7891/e-manuscripta-96513
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
160 4 J -7.3 280.7
161 4 J -7.7 269.5
167 8 C 19.4 220.5
168 18 C 2.1 277.2
170 13 C -9.3 230.7
5 47