Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 11, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2650 | N09 | E54 | 03 | 0040 | Beta | Apr 16, 2017 | Apr 23, 2017 | May 7, 2017 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1988 to April 2017. The gray background is the average SSN index.
