Active areas
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 1203 | N19 | E79 | 01 | 0040 | Alpha | May 6, 2011 | May 13, 2011 | May 27, 2011 |
| № 1202 | N15 | W36 | 02 | 0010 | Beta | Apr 27, 2011 | May 4, 2011 | May 18, 2011 |
| № 1199 | N18 | W46 | 10 | 0170 | Beta | Apr 26, 2011 | May 3, 2011 | May 17, 2011 |
| № 1196 | S23 | W30 | 02 | 0010 | Beta | Apr 28, 2011 | May 4, 2011 | May 18, 2011 |
| № 1195 | S18 | W50 | 06 | 0220 | Beta | Apr 26, 2011 | May 3, 2011 | May 17, 2011 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1982, January to 2011, April. Gray background - average solar cycle.
