Sunspot drawing of 1964-4-9

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https://doi.org/10.7891/e-manuscripta-93888



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1964-04-09
06:00
Hs 1304.5:2242
https://doi.org/10.7891/e-manuscripta-93888
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
32 3 A 15.4 140.9
34 1 A 12.6 216.2
2 4