Sunspot drawing of 1971-12-17

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https://doi.org/10.7891/e-manuscripta-96877



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1971-12-17
09:00
Hs 1304.5:4654
https://doi.org/10.7891/e-manuscripta-96877
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
345 3 J -2.5 252.4
348 6 J 9.3 238.6
353 15 D 17.9 193.4
354 5 J -14.0 188.1
360/366 39 D 11.6 181.5
361 2 A -14.5 209.9
362 15 D 8.6 139.2
363 4 J -4.8 134.1
364 21 D -15.1 112.2
365 2 A -13.9 198.2
367 2 A -5.5 105.7
11 114