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) | |
|---|---|---|---|---|---|---|---|---|
| № 2338 | N04 | E57 | 02 | 0010 | Alpha | May 9, 2015 | May 16, 2015 | May 30, 2015 |
| № 2337 | S16 | E57 | 02 | 0010 | Alpha | May 9, 2015 | May 16, 2015 | May 30, 2015 |
| № 2336 | N13 | E13 | 03 | 0010 | Beta | May 6, 2015 | May 13, 2015 | May 26, 2015 |
| № 2335 | S16 | E38 | 20 | 0170 | Beta | May 8, 2015 | May 15, 2015 | May 28, 2015 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1986, January to 2015, May. Gray background - average solar cycle.

