Sunspot drawing of 1973-9-1

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https://doi.org/10.7891/e-manuscripta-97415



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1973-09-01
07:00
Hs 1304.5:5165
https://doi.org/10.7891/e-manuscripta-97415
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
170 3 J 15.5 259.4
173 8 B 2.6 269.4
175 1 A 14.5 243.5
176 20 D -15.0 194.0
177 10 B -13.1 243.8
178 12 B 4.9 251.5
179 10 C 14.1 164.0
7 64