Sunspots and active regions — May 21, 2019
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) | |
|---|---|---|---|---|---|---|---|---|
| № 2741 | N05 | W108 | 01 | 0140 | Alpha | May 14, 2019 | May 21, 2019 | Jun 3, 2019 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1990, January to 2019, May. Gray background - average solar cycle.
