Sunspot drawing of 1974-9-9

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https://doi.org/10.7891/e-manuscripta-97853



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1974-09-09
08:00
Hs 1304.5:5477
https://doi.org/10.7891/e-manuscripta-97853
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
142 3 J -7.3 20.3
143 5 J -3.4 346.1
146 3 A -13.1 3.2
147 1 A -13.7 338.8
148 1 A -19.8 336.3
149 16 D 7.7 265.3
150 6 J -11.3 264.5
7 35