Sunspot drawing of 1973-4-19

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https://doi.org/10.7891/e-manuscripta-97397



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1973-04-19
07:30
Hs 1304.5:5044
https://doi.org/10.7891/e-manuscripta-97397
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
95 10 C 11.2 150.9
96 4 J 8.8 147.5
97 11 B -15.2 183.4
3 25