Sunspot drawing of 1973-6-25

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https://doi.org/10.7891/e-manuscripta-97533



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1973-06-25
07:00
Hs 1304.5:5101
https://doi.org/10.7891/e-manuscripta-97533
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
142 25 H -7.6 66.4
143 14 C -3.7 52.2
145 8 B -12.7 40.4
3 47