Sunspot drawing of 1971-12-24

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https://doi.org/10.7891/e-manuscripta-96802



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1971-12-24
09:00
Hs 1304.5:4660
https://doi.org/10.7891/e-manuscripta-96802
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
363 3 J -5.4 133.6
364 21 C -14.3 111.3
369 31 D -15.3 95.7
370 2 A -10.8 85.1
371 7 B -16.8 75.4
373 1 A -9.4 102.8
374 1 A -4.8 97.4
375 1 A -12.9 45.0
8 67