Sunspot drawing of 1961-4-9

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https://doi.org/10.7891/e-manuscripta-92520



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1961-04-09
06:45
Hs 1304.5:1316
https://doi.org/10.7891/e-manuscripta-92520
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
92 2 A -8.6 317.2
93 6 J -4.4 239.4
94 26 E 13.0 278.8
3 34