Sunspot drawing of 1972-7-20

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https://doi.org/10.7891/e-manuscripta-97150



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1972-07-20
07:30
Hs 1304.5:4814
https://doi.org/10.7891/e-manuscripta-97150
Observer : Araldo Pittini
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
230 8 A 7.9 244.6
231 8 J -9.9 240.7
234 17 J -9.1 227.8
238 15 C 12.8 233.2
239 2 A -12.2 207.0
5 50