Sunspot drawing of 1971-5-23

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https://doi.org/10.7891/e-manuscripta-96815



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1971-05-23
13:00
Hs 1304.5:4461
https://doi.org/10.7891/e-manuscripta-96815
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
157 2 A 16.1 58.5
1 2