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) | |
|---|---|---|---|---|---|---|---|---|
| № 2333 | N20 | E52 | 02 | 0030 | Alpha | Apr 29, 2015 | May 6, 2015 | May 20, 2015 |
| № 2332 | S13 | W42 | 02 | 0010 | Beta | Apr 22, 2015 | Apr 29, 2015 | May 12, 2015 |
| № 2331 | S09 | W18 | 11 | 0090 | Beta | Apr 24, 2015 | Apr 30, 2015 | May 14, 2015 |
| № 2327 | S08 | W09 | 01 | 0090 | Alpha | Apr 24, 2015 | May 1, 2015 | May 15, 2015 |
| № 2326 | N20 | W82 | 07 | 0080 | Beta | Apr 19, 2015 | Apr 26, 2015 | May 9, 2015 |
| № 2325 | N05 | W51 | 01 | 0240 | Alpha | Apr 21, 2015 | Apr 28, 2015 | May 11, 2015 |
| № 2324 | N19 | W58 | 05 | 0060 | Alpha | Apr 20, 2015 | Apr 27, 2015 | May 11, 2015 |
| № 2321 | N08 | W83 | 01 | 0030 | Alpha | Apr 19, 2015 | Apr 25, 2015 | May 9, 2015 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1986, January to 2015, April. Gray background - average solar cycle.
