Sunspot drawing of 1973-8-4

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https://doi.org/10.7891/e-manuscripta-97414



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1973-08-04
07:00
Hs 1304.5:5137
https://doi.org/10.7891/e-manuscripta-97414
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
158 3 J -4.6 292.1
164 6 C -9.0 195.7
166 7 B 5.9 215.3
3 16