Sunspot drawing of 1961-9-11

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https://doi.org/10.7891/e-manuscripta-92702



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1961-09-11
06:30
Hs 1304.5:1460
https://doi.org/10.7891/e-manuscripta-92702
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
267 13 E 14.4 285.7
268 36 E -9.2 298.3
270 1 B 19.6 312.0
3 50