Sunspot drawing of 1971-2-6

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https://doi.org/10.7891/e-manuscripta-96760



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1971-02-06
08:30
Hs 1304.5:4371
https://doi.org/10.7891/e-manuscripta-96760
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
30 29 E 5.7 69.3
38 7 J -7.5 12.8
39 15 B 23.6 51.3
40 2 A 8.2 345.7
41 2 A -38.4 337.1
5 55