Sunspot drawing of 1981-6-17

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https://doi.org/10.7891/e-manuscripta-139169



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1981-06-17
06:30
Hs 1304.6:143
https://doi.org/10.7891/e-manuscripta-139169
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
275 1 1 A 12 175
278 13 17 C -25 150
279 3 5 B -23 129
281 15 13 B 13 161
282 6 16 G -25 110
283 40 40 D -20 94
284 21 17 C 7 100
285 1 1 A -28 100
287 3 2 B -26 52
9 103 112