Sunspot drawing of 1981-6-18

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https://doi.org/10.7891/e-manuscripta-139123



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1981-06-18
08:15
Hs 1304.6:144
https://doi.org/10.7891/e-manuscripta-139123
Observer : Roberto Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
278 8 13 D -25 149
279 1 3 J -22 131
281 8 12 D 15 163
282 5 14 G -24 111
283 25 34 D -20 93
284 7 10 D 7 98
287 3 3 A -27 51
288 3 5 C 18 83
8 60 94