Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 21, 2026. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 4397 | N18 | E42 | 03 | 0030 | Beta | Mar 25, 2026 | Apr 1, 2026 | Apr 15, 2026 |
| № 4392 | S16 | W40 | 05 | 0130 | Beta | Mar 19, 2026 | Mar 26, 2026 | Apr 8, 2026 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1997 to March 2026. The gray background is the average SSN index.
