Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 23, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1703 | S25 | W57 | 05 | 0040 | Beta | Mar 19, 2013 | Mar 26, 2013 | Apr 9, 2013 |
| № 1702 | N08 | W36 | 04 | 0040 | Beta | Mar 21, 2013 | Mar 28, 2013 | Apr 10, 2013 |
| № 1701 | N14 | W85 | 02 | 0030 | Alpha | Mar 17, 2013 | Mar 24, 2013 | Apr 7, 2013 |
| № 1695 | N10 | W77 | 03 | 0100 | Beta | Mar 18, 2013 | Mar 25, 2013 | Apr 7, 2013 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1984 to March 2013. The gray background is the average SSN index.
