Sunspot drawing of 1972-5-31

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https://doi.org/10.7891/e-manuscripta-96984



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1972-05-31
07:30
Hs 1304.5:4769
https://doi.org/10.7891/e-manuscripta-96984
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
170 35 D 8.4 164.5
172 4 A 17.8 132.0
173 1 A -0.6 145.7
174 2 A -7.6 192.7
175 3 J -12.5 97.7
176 8 D -15.1 87.3
177 1 A -14.1 154.2
179 3 J 15.1 96.1
180 3 A 10.1 229.2
9 60