No image for the selected date
Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 25, 2013. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1730 | S19 | E49 | 02 | 0010 | Beta | Apr 30, 2013 | May 6, 2013 | May 20, 2013 |
| № 1729 | S14 | W20 | 06 | 0010 | Beta | Apr 24, 2013 | May 1, 2013 | May 15, 2013 |
| № 1728 | N19 | E50 | 01 | 0060 | Alpha | Apr 30, 2013 | May 7, 2013 | May 20, 2013 |
| № 1727 | N25 | W09 | 03 | 0030 | Alpha | Apr 25, 2013 | May 2, 2013 | May 16, 2013 |
| № 1726 | N13 | W61 | 30 | 0840 | Beta-Gamma-Delta | Apr 21, 2013 | Apr 28, 2013 | May 12, 2013 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1984 to April 2013. The gray background is the average SSN index.
