Sunspot drawing of 1972-5-21

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https://doi.org/10.7891/e-manuscripta-96993



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1972-05-21
07:30
Hs 1304.5:4759
https://doi.org/10.7891/e-manuscripta-96993
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
155 3 J -7.9 10.7
156 16 C -5.2 331.4
159 2 A -8.2 319.4
161 20 D 13.2 298.3
163 38 E -13.9 298.6
166 1 A 11.7 325.8
168 2 B -15.5 261.2
7 82