Sunspot drawing of 1972-12-22

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https://doi.org/10.7891/e-manuscripta-97083



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1972-12-22
09:00
Hs 1304.5:4944
https://doi.org/10.7891/e-manuscripta-97083
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
385 2 X -7.5 356.3
387 14 D 15.2 342.4
389 29 D 10.9 308.6
390 2 B 18.8 277.3
391 3 B -12.0 326.3
5 50