Sunspot drawing of 1973-6-26

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https://doi.org/10.7891/e-manuscripta-97360



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1973-06-26
07:00
Hs 1304.5:5102
https://doi.org/10.7891/e-manuscripta-97360
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
142 21 H -7.7 66.0
143 13 C -3.2 52.0
145 5 A -11.9 43.7
3 39