Sunspot drawing of 1971-7-28

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https://doi.org/10.7891/e-manuscripta-96906



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1971-07-28
06:45
Hs 1304.5:4524
https://doi.org/10.7891/e-manuscripta-96906
Observer : Araldo Pittini
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
219 21 C 11.2 310.6
224 3 J -7.2 243.1
226 15 J -13.0 231.1
229 11 B -12.7 273.2
230 4 B 6.9 188.4
231 1 A 17.6 305.4
232 2 A 23.1 297.5
7 57