Sunspot drawing of 2011-4-3

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https://doi.org/10.7891/e-manuscripta-156895



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2011-04-03
09:00
Hs 1304.6:9263
https://doi.org/10.7891/e-manuscripta-156895
Observer : Andrea Manna
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
40 1 2 A 23.9 159.9
43 18 15 E 14.7 135.9
47 18 16 D 15.5 109.7
3 37 33