Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 30, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2333 | N22 | W25 | 04 | 0010 | Beta | Apr 29, 2015 | May 6, 2015 | May 20, 2015 |
| № 2327 | S08 | W88 | 02 | 0020 | Alpha | Apr 24, 2015 | May 1, 2015 | May 15, 2015 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1986 to April 2015. The gray background is the average SSN index.
