Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 28, 2017. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2646 | N06 | W58 | 01 | 0020 | Alpha | Mar 24, 2017 | Mar 31, 2017 | Apr 14, 2017 |
| № 2645 | S09 | E61 | 03 | 0030 | Beta | Apr 2, 2017 | Apr 9, 2017 | Apr 23, 2017 |
| № 2644 | N13 | E19 | 15 | 0150 | Beta-Gamma | Mar 30, 2017 | Apr 6, 2017 | Apr 20, 2017 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1988 to March 2017. The gray background is the average SSN index.
