Sunspot drawing of 1976-4-13

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https://doi.org/10.7891/e-manuscripta-98430



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1976-04-13
08:00
Hs 1304.5:5961
https://doi.org/10.7891/e-manuscripta-98430
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
15 11 H 2.5 208.8
16 1 A -14.2 216.0
2 12