Sunspot drawing of 1969-7-18

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https://doi.org/10.7891/e-manuscripta-95690



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1969-07-18
07:00
Hs 1304.5:3894
https://doi.org/10.7891/e-manuscripta-95690
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
291 3 J -14.8 19.7
294 4 J 9.9 332.2
295 5 B 6.0 334.8
299 10 C 20.4 12.8
300 2 B 12.5 331.5
303 3 B 15.5 350.7
305 32 D 12.1 237.8
306 2 B 7.4 318.1
307 13 B 24.4 309.3
9 74