Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 19, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2328 | S02 | W69 | 04 | 0010 | Beta | Apr 15, 2015 | Apr 22, 2015 | May 5, 2015 |
| № 2327 | S09 | E57 | 02 | 0140 | Beta | Apr 24, 2015 | May 1, 2015 | May 15, 2015 |
| № 2326 | N15 | W16 | 05 | 0010 | Beta | Apr 19, 2015 | Apr 26, 2015 | May 9, 2015 |
| № 2325 | N05 | E18 | 09 | 0160 | Beta | Apr 21, 2015 | Apr 28, 2015 | May 12, 2015 |
| № 2324 | N19 | E08 | 06 | 0360 | Beta-Gamma | Apr 21, 2015 | Apr 27, 2015 | May 11, 2015 |
| № 2322 | N16 | W50 | 02 | 0010 | Beta | Apr 16, 2015 | Apr 23, 2015 | May 7, 2015 |
| № 2321 | N11 | W22 | 16 | 0180 | Beta-Gamma | Apr 18, 2015 | Apr 25, 2015 | May 9, 2015 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1986 to April 2015. The gray background is the average SSN index.
