Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 31, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2645 | S10 | E16 | 10 | 0260 | Beta | Apr 2, 2017 | Apr 9, 2017 | Apr 23, 2017 |
| № 2644 | N12 | W23 | 03 | 0190 | Beta | 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.
