Sunspot drawing of 1973-8-25

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https://doi.org/10.7891/e-manuscripta-97525



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1973-08-25
08:45
Hs 1304.5:5158
https://doi.org/10.7891/e-manuscripta-97525
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
169 13 B 12.9 345.8
170 3 J 14.3 259.5
171 2 A 9.1 19.1
3 18