Sunspots and active regions — April 27, 2017
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 2653 | S09 | E10 | 01 | 0050 | Alpha | Apr 29, 2017 | May 5, 2017 | May 19, 2017 |
| № 2652 | N14 | W24 | 03 | 0010 | Alpha | Apr 26, 2017 | May 3, 2017 | May 16, 2017 |
| № 2651 | N11 | W33 | 02 | 0080 | Alpha | Apr 25, 2017 | May 2, 2017 | May 16, 2017 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1988, January to 2017, April. Gray background - average solar cycle.
