Sunspot drawing of 1978-9-12

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https://doi.org/10.7891/e-manuscripta-98984



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1978-09-12
07:00
Hs 1304.5:6696
https://doi.org/10.7891/e-manuscripta-98984
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
309 29 E 30.8 103.9
311 9 C 17.1 69.3
314A 3 B 17.3 113.0
315 3 J 38.0 37.7
316 10 D 35.9 27.0
317 4 J 27.8 24.2
6 58