Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 25, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2313 | N18 | E63 | 01 | 0030 | Alpha | Mar 31, 2015 | Apr 7, 2015 | Apr 20, 2015 |
| № 2312 | N08 | E54 | 03 | 0030 | Beta | Mar 30, 2015 | Apr 6, 2015 | Apr 19, 2015 |
| № 2311 | N11 | W60 | 02 | 0000 | Alpha | Mar 21, 2015 | Mar 28, 2015 | Apr 11, 2015 |
| № 2310 | N06 | E41 | 04 | 0020 | Beta | Mar 29, 2015 | Apr 5, 2015 | Apr 18, 2015 |
| № 2309 | N14 | W36 | 01 | 0000 | Alpha | Mar 23, 2015 | Mar 30, 2015 | Apr 13, 2015 |
| № 2308 | N16 | W75 | 01 | 0050 | Alpha | Mar 20, 2015 | Mar 27, 2015 | Apr 10, 2015 |
| № 2307 | S19 | W04 | 03 | 0010 | Beta | Mar 26, 2015 | Apr 2, 2015 | Apr 15, 2015 |
| № 2305 | S08 | E32 | 15 | 0340 | Beta-Gamma-Delta | Mar 28, 2015 | Apr 4, 2015 | Apr 18, 2015 |
| № 2303 | N19 | W30 | 07 | 0100 | Beta | Mar 24, 2015 | Mar 31, 2015 | Apr 13, 2015 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1986 to March 2015. The gray background is the average SSN index.
