Sunspot drawing of 1991-10-19

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https://doi.org/10.7891/e-manuscripta-145905



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1991-10-19
11:15
Hs 1304.6:3293
https://doi.org/10.7891/e-manuscripta-145905
Observer : Andrea Manna
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
550 1 4 J 8 17
552 5 9 H -19 9
554 2 5 C 17 3
560 3 6 C -3 341
561 3 3 B -19 337
563 16 20 D 22 297
6 30 47