Sunspot drawing of 1990-7-20

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https://doi.org/10.7891/e-manuscripta-145354



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1990-07-20
07:00
Hs 1304.6:2904
https://doi.org/10.7891/e-manuscripta-145354
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
381 1 2 A 19 265
382 6 6 J 12 212
389 40 40 D -28 170
390 21 28 E 11 142
391 3 2 B 22 170
392 2 3 J -21 121
6 73 81