Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 22, 2015. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2332 | S13 | W17 | 02 | 0010 | Beta | Apr 22, 2015 | Apr 29, 2015 | May 12, 2015 |
| № 2331 | S10 | E10 | 10 | 0030 | Beta | Apr 24, 2015 | May 1, 2015 | May 14, 2015 |
| № 2330 | N15 | E18 | 04 | 0020 | Beta | Apr 24, 2015 | May 1, 2015 | May 15, 2015 |
| № 2329 | S08 | W79 | 09 | 0050 | Beta | Apr 17, 2015 | Apr 24, 2015 | May 7, 2015 |
| № 2327 | S10 | E17 | 03 | 0090 | Alpha | Apr 24, 2015 | May 1, 2015 | May 15, 2015 |
| № 2325 | N06 | W24 | 08 | 0210 | Beta | Apr 21, 2015 | Apr 28, 2015 | May 12, 2015 |
| № 2324 | N19 | W33 | 16 | 0170 | Beta | Apr 20, 2015 | Apr 27, 2015 | May 11, 2015 |
| № 2322 | N11 | W87 | 10 | 0060 | Beta | Apr 16, 2015 | Apr 23, 2015 | May 7, 2015 |
| № 2321 | N07 | W58 | 01 | 0030 | Alpha | Apr 19, 2015 | Apr 25, 2015 | May 9, 2015 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1986 to April 2015. The gray background is the average SSN index.
