Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 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) | |
|---|---|---|---|---|---|---|---|---|
| № 4034 | S14 | E48 | 03 | 0020 | Beta | Mar 22, 2025 | Mar 29, 2025 | Apr 12, 2025 |
| № 4033 | N24 | E39 | 02 | 0010 | Alpha | Mar 22, 2025 | Mar 29, 2025 | Apr 12, 2025 |
| № 4031 | N15 | W08 | 12 | 0060 | Beta-Gamma | Mar 18, 2025 | Mar 25, 2025 | Apr 8, 2025 |
| № 4030 | S17 | E28 | 01 | 0070 | Alpha | Mar 21, 2025 | Mar 28, 2025 | Apr 11, 2025 |
| № 4028 | S18 | E18 | 17 | 0100 | Beta-Gamma | Mar 20, 2025 | Mar 27, 2025 | Apr 10, 2025 |
| № 4025 | N11 | W24 | 12 | 0090 | Beta-Gamma | Mar 17, 2025 | Mar 24, 2025 | Apr 6, 2025 |
| № 4023 | N25 | W17 | 01 | 0010 | Alpha | Mar 18, 2025 | Mar 25, 2025 | Apr 7, 2025 |
| № 4022 | N06 | W36 | 06 | 0030 | Beta | Mar 16, 2025 | Mar 23, 2025 | Apr 5, 2025 |
| № 4021 | S06 | W22 | 07 | 0120 | Beta | Mar 17, 2025 | Mar 24, 2025 | Apr 7, 2025 |
| № 4020 | N19 | W40 | 01 | 0020 | Alpha | Mar 16, 2025 | Mar 23, 2025 | Apr 5, 2025 |
| № 4019 | N06 | W63 | 06 | 0040 | Beta | Mar 14, 2025 | Mar 21, 2025 | Apr 3, 2025 |
| № 4018 | S19 | W76 | 01 | 0050 | Alpha | Mar 13, 2025 | Mar 20, 2025 | Apr 3, 2025 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1996 to March 2025. The gray background is the average SSN index.
