Sunspot drawing of 1972-5-18

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https://doi.org/10.7891/e-manuscripta-97020



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1972-05-18
09:00
Hs 1304.5:4757
https://doi.org/10.7891/e-manuscripta-97020
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
155 10 11 C -7.5 9.2
156 12 16 D -5.6 332.1
159 1 2 A -9.3 321.6
161 13 15 C 13.9 298.2
162 2 2 A 7.4 310.0
163 27 28 E -13.6 299.1
164 1 1 A 12.2 346.4
165 2 1 A -12.7 343.0
8 68 76