Sunspot drawing of 1972-12-15

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https://doi.org/10.7891/e-manuscripta-97249



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1972-12-15
09:00
Hs 1304.5:4938
https://doi.org/10.7891/e-manuscripta-97249
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
378 14 E 10.5 109.0
380 6 B -17.3 97.3
381 24 D -19.6 59.3
382 4 A 20.1 58.0
383 4 A -14.5 55.3
384 1 A -5.6 13.8
6 53