Sunspot drawing of 1961-8-31

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https://doi.org/10.7891/e-manuscripta-92703



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1961-08-31
06:00
Hs 1304.5:1450
https://doi.org/10.7891/e-manuscripta-92703
Observer : Araldo Pittini
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
254 13 14 D 17.2 206.3
260 32 26 D 13.3 78.5
2 45 40