Sunspot drawing of 1997-4-6

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https://doi.org/10.7891/e-manuscripta-149790



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1997-04-06
08:30
Hs 1304.6:4959
https://doi.org/10.7891/e-manuscripta-149790
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
19 1 2 A -23 290
20 5 10 J -28 213
2 6 12