Sunspot drawing of 1971-10-24

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https://doi.org/10.7891/e-manuscripta-96715



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1971-10-24
07:00
Hs 1304.5:4609
https://doi.org/10.7891/e-manuscripta-96715
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
291 96 50 E 7.9 210.3
293 36 24 D 18.0 188.7
296 1 3 H -5.0 133.5
297 10 4 A 12.4 128.4
4 143 81