Sunspot drawing of 1980-9-18

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https://doi.org/10.7891/e-manuscripta-99966



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1980-09-18
10:30
Hs 1304.5:7298
https://doi.org/10.7891/e-manuscripta-99966
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
504 11 H 14.6 147.7
508 20 C -11.2 119.3
510 12 B -7.8 148.3
511 20 D -12.0 107.8
515 1 A 15.6 117.6
516 7 C -31.2 52.2
517 1 A 39.2 141.2
521 11 C -10.0 76.0
523 9 C 21.8 120.5
524 1 A 19.0 42.0
10 93