Sunspot drawing of 1973-5-6

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https://doi.org/10.7891/e-manuscripta-97483



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1973-05-06
15:00
Hs 1304.5:5057
https://doi.org/10.7891/e-manuscripta-97483
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
102 59 F -13.3 338.0
107 5 B -13.3 302.0
108 6 B -9.8 353.4
3 70