Sunspot drawing of 1978-7-28

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https://doi.org/10.7891/e-manuscripta-99087



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1978-07-28
07:00
Hs 1304.5:6653
https://doi.org/10.7891/e-manuscripta-99087
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
244 4 B 26.9 9.4
248 4 J 35.3 277.3
250 5 B 17.4 291.6
251 3 J 18.8 273.2
4 16