Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 17, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 4396 | N20 | E40 | 01 | 0010 | Alpha | Mar 21, 2026 | Mar 28, 2026 | Apr 11, 2026 |
| № 4395 | S05 | E29 | 06 | 0030 | Beta | Mar 20, 2026 | Mar 27, 2026 | Apr 9, 2026 |
| № 4393 | N14 | W15 | 07 | 0030 | Beta | Mar 17, 2026 | Mar 24, 2026 | Apr 6, 2026 |
| № 4392 | S16 | E17 | 12 | 0160 | Beta-Gamma | Mar 19, 2026 | Mar 26, 2026 | Apr 9, 2026 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1997 to March 2026. The gray background is the average SSN index.
