Sunspot drawing of 1971-12-19

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https://doi.org/10.7891/e-manuscripta-96747



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1971-12-19
09:00
Hs 1304.5:4656
https://doi.org/10.7891/e-manuscripta-96747
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
348 3 J 9.2 238.9
353 5 J 16.7 195.5
354 1 A -13.3 187.4
360 16 D 11.6 179.7
362 6 B 8.5 141.7
363 3 J -4.7 134.1
364 22 D -14.6 111.9
367 2 A -5.4 106.4
368 8 B -9.0 173.2
369 15 H -15.5 95.5
370 3 B -9.8 87.1
11 84