Sunspot drawing of 1959-4-18

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https://doi.org/10.7891/e-manuscripta-91235



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1959-04-18
08:00
Hs 1304.5:694
https://doi.org/10.7891/e-manuscripta-91235
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
292 16 D -16.7 102.5
294 24 F 25.3 93.0
295 5 A -0.3 118.7
307 11 D -9.7 87.5
308 5 J 16.5 60.5
309 9 C 11.3 51.1
316 12 D 18.5 347.2
318 11 C -11.9 82.8
319 1 A 35.8 66.5
320 3 A 16.0 40.9
321 1 A 23.4 35.0
322 3 B 3.1 332.5
12 101