Sunspot drawing of 1973-3-19

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https://doi.org/10.7891/e-manuscripta-97367



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1973-03-19
07:00
Hs 1304.5:5014
https://doi.org/10.7891/e-manuscripta-97367
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
69 12 C -7.7 340.9
70 6 C -13.3 331.9
74 12 C 14.3 223.5
3 30