Sunspot drawing of 1971-7-18

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https://doi.org/10.7891/e-manuscripta-96862



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1971-07-18
10:00
Hs 1304.5:4514
https://doi.org/10.7891/e-manuscripta-96862
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
205 10 C 14.4 60.0
206 20 E 4.9 29.4
207 3 J 9.4 12.7
210 4 B -5.3 4.0
211 2 A -15.7 13.0
213 9 B 13.2 349.1
214 2 B -13.1 336.0
7 50