Sunspot drawing of 1974-9-16

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https://doi.org/10.7891/e-manuscripta-97910



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1974-09-16
07:30
Hs 1304.5:5484
https://doi.org/10.7891/e-manuscripta-97910
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
149 50 D 7.3 266.6
150 8 B -11.5 269.0
151 2 A -15.4 254.0
153 8 B 8.7 180.9
4 68