Sunspot drawing of 1985-4-1

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https://doi.org/10.7891/e-manuscripta-141584



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1985-04-01
07:15
Hs 1304.6:1261
https://doi.org/10.7891/e-manuscripta-141584
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
22 5 9 C 6 250
30 2 3 A -25 152
31 4 3 B -5 238
3 11 15