Sunspot drawing of 1990-5-20

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https://doi.org/10.7891/e-manuscripta-145236



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1990-05-20
15:00
Hs 1304.6:2847
https://doi.org/10.7891/e-manuscripta-145236
Observer : Michele Bianda
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
261 2 4 J 22 353
265 15 35 D 35 315
269 65 80 E -16 309
274 8 6 B 9 268
275 11 10 B 8 264
278 4 3 B -9 254
279 16 16 D -18 244
280 2 2 B 11 320
281 8 9 C -12 233
282 1 3 J 26 225
10 132 168