Sunspot drawing of 1972-1-18

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https://doi.org/10.7891/e-manuscripta-97089



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1972-01-18
12:00
Hs 1304.5:4671
https://doi.org/10.7891/e-manuscripta-97089
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
13 2 A -9.3 177.6
14 7 B 14.3 106.4
15 3 A -12.6 113.0
16 46 D -15.6 95.3
4 58