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) | |
|---|---|---|---|---|---|---|---|---|
| № 2347 | N05 | E55 | 01 | 0010 | Alpha | May 18, 2015 | May 25, 2015 | Jun 7, 2015 |
| № 2346 | S07 | E56 | 01 | 0050 | Alpha | May 18, 2015 | May 25, 2015 | Jun 7, 2015 |
| № 2345 | N15 | W05 | 03 | 0010 | Beta | May 14, 2015 | May 20, 2015 | Jun 3, 2015 |
| № 2344 | S10 | E46 | 03 | 0040 | Beta | May 17, 2015 | May 24, 2015 | Jun 7, 2015 |
| № 2343 | N11 | E13 | 02 | 0010 | Beta | May 15, 2015 | May 22, 2015 | Jun 4, 2015 |
| № 2342 | N18 | E23 | 05 | 0030 | Beta | May 16, 2015 | May 23, 2015 | Jun 5, 2015 |
| № 2341 | S19 | E08 | 01 | 0070 | Alpha | May 15, 2015 | May 21, 2015 | Jun 4, 2015 |
| № 2340 | S07 | E01 | 01 | 0010 | Alpha | May 14, 2015 | May 21, 2015 | Jun 3, 2015 |
| № 2339 | N14 | W18 | 51 | 0670 | Beta-Gamma | May 13, 2015 | May 19, 2015 | Jun 2, 2015 |
| № 2335 | S14 | W84 | 02 | 0010 | Beta | May 8, 2015 | May 14, 2015 | May 28, 2015 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1986, January to 2015, May. Gray background - average solar cycle.
