Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 28, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2314 | S21 | E56 | 02 | 0020 | Beta | Apr 2, 2015 | Apr 9, 2015 | Apr 23, 2015 |
| № 2313 | N17 | E28 | 01 | 0030 | Alpha | Mar 31, 2015 | Apr 7, 2015 | Apr 21, 2015 |
| № 2312 | N08 | E14 | 01 | 0010 | Alpha | Mar 30, 2015 | Apr 6, 2015 | Apr 19, 2015 |
| № 2310 | N04 | E03 | 02 | 0010 | Beta | Mar 29, 2015 | Apr 5, 2015 | Apr 18, 2015 |
| № 2309 | N14 | W77 | 02 | 0060 | Beta | Mar 23, 2015 | Mar 30, 2015 | Apr 12, 2015 |
| № 2307 | S19 | W37 | 03 | 0010 | Beta | Mar 26, 2015 | Apr 2, 2015 | Apr 16, 2015 |
| № 2305 | S09 | W08 | 17 | 0410 | Beta-Gamma | Mar 28, 2015 | Apr 4, 2015 | Apr 18, 2015 |
| № 2303 | N18 | W64 | 01 | 0050 | Beta | Mar 24, 2015 | Mar 31, 2015 | Apr 14, 2015 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1986 to March 2015. The gray background is the average SSN index.
