Sunspot drawing of 1971-9-26

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https://doi.org/10.7891/e-manuscripta-96945



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1971-09-26
07:15
Hs 1304.5:4583
https://doi.org/10.7891/e-manuscripta-96945
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
277 1 A 11.3 192.6
278 6 C -14.3 191.3
280 5 H -7.4 131.9
3 12