Sunspot drawing of 1972-10-17

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https://doi.org/10.7891/e-manuscripta-97252



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1972-10-17
08:00
Hs 1304.5:4891
https://doi.org/10.7891/e-manuscripta-97252
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
338 8 B -6.5 66.9
339 12 E -16.0 53.8
340 2 A 19.4 202.4
3 22