Sunspot drawing of 1973-6-23

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https://doi.org/10.7891/e-manuscripta-97458



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1973-06-23
06:30
Hs 1304.5:5099
https://doi.org/10.7891/e-manuscripta-97458
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
142 28 C -7.5 66.0
143 16 D -3.2 52.3
145 7 C -12.1 39.6
3 51