Sunspot drawing of 1969-9-28

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https://doi.org/10.7891/e-manuscripta-95910



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1969-09-28
07:45
Hs 1304.5:3964
https://doi.org/10.7891/e-manuscripta-95910
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
397 11 D -9.8 98.9
399 2 A 5.9 105.4
400 19 B 6.2 89.4
401 5 J -13.8 80.7
402 23 D 4.3 150.7
405 17 C 10.3 65.5
406 5 B 11.6 81.7
407 11 D -12.9 56.2
408 6 B -14.9 7.6
409 2 A 35.7 73.6
410 1 A -9.1 32.0
411 6 B -13.9 20.7
12 108