Sunspot drawing of 1971-8-15

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https://doi.org/10.7891/e-manuscripta-96706



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1971-08-15
07:00
Hs 1304.5:4542
https://doi.org/10.7891/e-manuscripta-96706
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
240 3 J -8.7 100.0
242 2 B -12.6 89.8
247 3 J 13.2 354.4
249 2 A 11.4 41.8
251 4 J 13.9 343.7
252 4 J 12.1 317.1
253 1 A -14.4 18.4
7 19