Sunspot drawing of 1991-12-23

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https://doi.org/10.7891/e-manuscripta-145966



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1991-12-23
08:30
Hs 1304.6:3341
https://doi.org/10.7891/e-manuscripta-145966
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
657 5 22 C -12 193
664 4 16 G -20 150
665 16 40 D -14 144
666 7 23 D -9 214
667 7 25 E -17 99
5 39 126