Sunspot drawing of 2017-4-3

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https://doi.org/10.7891/e-manuscripta-159582



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2017-04-03
07:45
Hs 1304.6:10895
https://doi.org/10.7891/e-manuscripta-159582
Observer : Marco Cagnotti
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
24 18 36 E 13.2 60.1
26 39 56 E -9.8 15.6
28 4 5 B 15.2 35.9
29 7 10 B -3.5 287.4
4 68 107