Die 15 größten Sonnenfleckengruppen

Sunspot drawings of the biggest sunspot groups in history. The areas after 1976 are corrected by a factor of 1.4 in order to fit into the Greenwich scheme.
The group numbers are NOAA numbers, before 1982 the Greenwich group number was used.

Nr. 1 on 19470408
Area: 6132
Group: G 1488603

Nr. 2 on 19460206
Area: 5080
Group: G 1441702

Nr. 3 on 19890313
Area: 5040
Group: NOAA 5395

Nr. 4 on 19510517
Area: 4865
Group: G 1676304

Nr. 5 on 19460727
Area: 4720
Group: G 1458503

Nr. 6 on 19470310
Area: 4554
Group: G 1485104

Nr. 7 on 19820617
Area: 4340
Group: NOAA 3776

Nr. 8 on 19890905
Area: 4312
Group: NOAA 5669

Nr. 9 on 19901120
Area: 4312
Group: NOAA 6368

Nr. 10 on 19880630
Area: 4060
Group: NOAA 5060

Nr. 11 on 19820715
Area: 4018
Group: NOAA 3804

Nr. 12 on 20141024
Area: 3850
Group: NOAA 12192

Nr. 13 on 19260119
Area: 3716
Group: G 986103
(from Mt. Wilson)

Nr. 14 on 19820210
Area: 3696
Group: NOAA 3594

Nr. 15 on 20031030
Area: 3640
Group: NOAA 10486
The rankings 1 and 6 and the rankings 7 and 11, respectively, are the same groups, just one solar rotatiton apart.
 
 
 
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