Sunspot drawing of 1988-2-29

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https://doi.org/10.7891/e-manuscripta-143704



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1988-02-29
09:00
Hs 1304.6:2139
https://doi.org/10.7891/e-manuscripta-143704
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
42 1 2 A 20 152
44 12 26 D 17 143
46 12 27 D -21 164
3 25 55