Sunspot drawing of 1988-12-17

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https://doi.org/10.7891/e-manuscripta-143750



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1988-12-17
09:30
Hs 1304.6:2393
https://doi.org/10.7891/e-manuscripta-143750
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
392 1 3 J -18 23
393 1 3 J -35 10
397 2 4 A 12 347
398 9 3 J -11 333
399 3 6 C 31 336
400 8 14 C -30 328
400A 11 18 D -32 322
401 1 3 J -30 308
405 13 24 D 20 310
405A 24 40 D 23 304
406 17 30 D 27 276
407 17 32 D 26 264
408 1 3 J 19 6
409 1 3 J -24 262
410 1 3 J 17 222
15 110 189