Sunspot drawing of 1988-7-31

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https://doi.org/10.7891/e-manuscripta-143700



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1988-07-31
08:00
Hs 1304.6:2272
https://doi.org/10.7891/e-manuscripta-143700
Observer : Marco Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
169 1 3 J 13 11
172 37 34 D -20 358
174 37 36 D 16 356
175 81 70 E 28 304
179 1 1 A 35 293
180 5 7 C 25 325
181 2 3 B -25 288
7 164 154