Sunspot drawing of 1957-10-18

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https://doi.org/10.7891/e-manuscripta-87888



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1957-10-18
07:30
Hs 1304.5:253
https://doi.org/10.7891/e-manuscripta-87888
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
553 1 4 H 26.1 143.1
555 32 33 D -16.4 103.4
558 12 20 D 24.9 73.9
560 98 124 F -23.0 68.6
561 7 8 B 9.6 83.8
563 3 9 D -27.7 62.0
564 8 9 D 24.5 109.7
567 8 10 B 27.0 63.5
570 8 8 C -15.9 37.6
574 14 13 B 9.5 58.0
577 5 6 C -21.9 18.0
578 6 6 B 22.4 120.2
581 3 4 B -21.0 39.2
13 205 254