Sunspot drawing of 1967-8-18

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https://doi.org/10.7891/e-manuscripta-95238



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1967-08-18
06:30
Hs 1304.5:3309
https://doi.org/10.7891/e-manuscripta-95238
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
301 3 J -22.0 265.6
304 3 J -17.1 249.9
309 6 B 24.6 245.9
310 5 H -30.6 168.1
311 10 D 18.4 220.8
312 26 D 8.5 203.4
313 4 C 33.1 251.0
314 2 A -29.8 198.3
315 1 A 18.9 185.2
316 2 A -30.8 111.5
317 2 A 23.7 98.2
11 64