Sunspot drawing of 2017-4-1

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https://doi.org/10.7891/e-manuscripta-159483



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2017-04-01
08:00
Hs 1304.6:10893
https://doi.org/10.7891/e-manuscripta-159483
Observer : Marco Cagnotti
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
24 8 14 E 12.5 55.2
26 22 45 E -9.9 15.1
27 3 3 B 9.9 17.5
28 2 2 A 15.3 33.5
4 35 64