Sunspot drawing of 1971-9-3

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https://doi.org/10.7891/e-manuscripta-96746



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1971-09-03
07:15
Hs 1304.5:4561
https://doi.org/10.7891/e-manuscripta-96746
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
259A 15 C -5.5 119.5
260 4 A 17.0 98.3
2 19