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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 24, 2011. Coordinates are given as of the end of the day.
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 1221 | S18 | W67 | 02 | 0020 | Beta | May 20, 2011 | May 27, 2011 | Jun 9, 2011 |
| № 1220 | N13 | W77 | 04 | 0050 | Beta | May 19, 2011 | May 26, 2011 | Jun 8, 2011 |
| № 1216 | S15 | W23 | 01 | 0070 | Alpha | May 23, 2011 | May 30, 2011 | Jun 13, 2011 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1982 to May 2011. The gray background is the average SSN index.
