Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 17, 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 | S16 | E51 | 03 | 0010 | Beta | Mar 22, 2025 | Mar 29, 2025 | Apr 11, 2025 |
| № 4033 | N25 | E47 | 02 | 0010 | Alpha | Mar 22, 2025 | Mar 29, 2025 | Apr 12, 2025 |
| № 4032 | N28 | E22 | 01 | 0010 | Alpha | Mar 20, 2025 | Mar 27, 2025 | Apr 10, 2025 |
| № 4031 | N17 | E04 | 06 | 0060 | Beta | Mar 18, 2025 | Mar 25, 2025 | Apr 8, 2025 |
| № 4030 | S17 | E38 | 01 | 0080 | Alpha | Mar 21, 2025 | Mar 28, 2025 | Apr 10, 2025 |
| № 4028 | S18 | E27 | 12 | 0110 | Beta-Gamma | Mar 20, 2025 | Mar 27, 2025 | Apr 10, 2025 |
| № 4025 | N11 | W12 | 10 | 0050 | Beta-Gamma | Mar 17, 2025 | Mar 24, 2025 | Apr 6, 2025 |
| № 4023 | N25 | W07 | 01 | 0020 | Alpha | Mar 17, 2025 | Mar 24, 2025 | Apr 7, 2025 |
| № 4022 | N05 | W23 | 09 | 0070 | Beta | Mar 16, 2025 | Mar 23, 2025 | Apr 6, 2025 |
| № 4021 | S05 | W11 | 07 | 0110 | Beta | Mar 17, 2025 | Mar 24, 2025 | Apr 6, 2025 |
| № 4020 | N19 | W28 | 01 | 0030 | Alpha | Mar 16, 2025 | Mar 23, 2025 | Apr 5, 2025 |
| № 4019 | N05 | W51 | 06 | 0120 | Beta | Mar 14, 2025 | Mar 21, 2025 | Apr 3, 2025 |
| № 4018 | S20 | W66 | 01 | 0070 | 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.
