Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 17, 2024. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 3644 | N12 | E72 | 02 | 0080 | Beta | Apr 23, 2024 | Apr 30, 2024 | May 14, 2024 |
| № 3643 | S13 | E48 | 06 | 0100 | Beta-Gamma | Apr 22, 2024 | Apr 28, 2024 | May 12, 2024 |
| № 3642 | N18 | W25 | 05 | 0010 | Beta | Apr 16, 2024 | Apr 23, 2024 | May 7, 2024 |
| № 3641 | N12 | W14 | 06 | 0110 | Beta | Apr 17, 2024 | Apr 24, 2024 | May 7, 2024 |
| № 3639 | N29 | E36 | 19 | 0310 | Beta-Gamma-Delta | Apr 21, 2024 | Apr 28, 2024 | May 12, 2024 |
| № 3638 | S17 | E32 | 08 | 0080 | Beta | Apr 20, 2024 | Apr 27, 2024 | May 11, 2024 |
| № 3637 | S13 | E27 | 02 | 0020 | Beta-Delta | Apr 20, 2024 | Apr 27, 2024 | May 10, 2024 |
| № 3636 | S20 | E08 | 03 | 0090 | Beta | Apr 19, 2024 | Apr 26, 2024 | May 9, 2024 |
| № 3635 | N22 | W28 | 03 | 0010 | Alpha | Apr 16, 2024 | Apr 23, 2024 | May 7, 2024 |
| № 3634 | N26 | W56 | 09 | 0310 | Beta | Apr 14, 2024 | Apr 21, 2024 | May 5, 2024 |
| № 3633 | S09 | W65 | 03 | 0080 | Beta | Apr 13, 2024 | Apr 20, 2024 | May 3, 2024 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1995 to April 2024. The gray background is the average SSN index.
