Sunspot drawing of 1987-5-25

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https://doi.org/10.7891/e-manuscripta-143028



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1987-05-25
07:00
Hs 1304.6:1912
https://doi.org/10.7891/e-manuscripta-143028
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
47 34 42 D 28 340
48 2 3 A 34 334
2 36 45