Sunspot drawing of 1959-4-21

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https://doi.org/10.7891/e-manuscripta-91360



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1959-04-21
06:00
Hs 1304.5:697
https://doi.org/10.7891/e-manuscripta-91360
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
307 2 B -9.6 84.5
308 6 D 16.1 59.5
309 11 C 10.3 50.0
316 16 D 18.0 345.2
320 23 D 17.0 42.8
321 1 A 23.7 33.8
322 12 D 1.1 331.5
323 14 D 6.9 20.3
324 9 C 20.6 322.8
326 1 A 11.9 312.3
327 9 J 8.1 304.5
11 104