No image for the selected date
Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 22, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1198 | S26 | W37 | 04 | 0010 | Alpha | Apr 20, 2011 | Apr 27, 2011 | May 11, 2011 |
| № 1197 | S16 | E58 | 01 | 0010 | Alpha | Apr 27, 2011 | May 4, 2011 | May 18, 2011 |
| № 1196 | S26 | E64 | 04 | 0040 | Beta | Apr 28, 2011 | May 5, 2011 | May 19, 2011 |
| № 1195 | S17 | E44 | 10 | 0240 | Beta | Apr 26, 2011 | May 3, 2011 | May 17, 2011 |
| № 1193 | N16 | W31 | 20 | 0300 | Beta | Apr 21, 2011 | Apr 27, 2011 | May 11, 2011 |
| № 1191 | N08 | W51 | 01 | 0010 | Alpha | Apr 19, 2011 | Apr 26, 2011 | May 9, 2011 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1982 to April 2011. The gray background is the average SSN index.
