Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 18, 2025. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 4066 | S05 | E49 | 09 | 0040 | Beta | Apr 23, 2025 | Apr 29, 2025 | May 13, 2025 |
| № 4065 | S30 | E63 | 01 | 0030 | Alpha | Apr 24, 2025 | May 1, 2025 | May 15, 2025 |
| № 4064 | N11 | E60 | 08 | 0200 | Beta | Apr 24, 2025 | Apr 30, 2025 | May 14, 2025 |
| № 4063 | N05 | W04 | 02 | 0010 | Beta | Apr 19, 2025 | Apr 25, 2025 | May 9, 2025 |
| № 4062 | S03 | E38 | 18 | 0280 | Beta-Gamma | Apr 22, 2025 | Apr 29, 2025 | May 12, 2025 |
| № 4060 | N08 | W31 | 08 | 0120 | Beta-Delta | Apr 17, 2025 | Apr 23, 2025 | May 7, 2025 |
| № 4056 | S07 | W74 | 02 | 0030 | Beta | Apr 13, 2025 | Apr 20, 2025 | May 4, 2025 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1996 to April 2025. The gray background is the average SSN index.
