Sunspot drawing of 1971-12-23

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https://doi.org/10.7891/e-manuscripta-96854



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1971-12-23
09:00
Hs 1304.5:4659
https://doi.org/10.7891/e-manuscripta-96854
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
360 6 C 12.3 181.9
363 3 J -5.1 134.0
364 21 C -14.0 112.7
369 32 D -15.0 96.9
370 6 A -11.9 85.5
371 5 A -16.0 77.3
372 1 A 11.7 75.8
7 74