Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 13, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 3636 | S21 | E58 | 02 | 0050 | Alpha | Apr 18, 2024 | Apr 25, 2024 | May 9, 2024 |
| № 3635 | N21 | E26 | 09 | 0050 | Beta | Apr 16, 2024 | Apr 23, 2024 | May 7, 2024 |
| № 3634 | N26 | W05 | 13 | 0120 | Beta | Apr 14, 2024 | Apr 21, 2024 | May 5, 2024 |
| № 3633 | S08 | W10 | 06 | 0110 | Beta | Apr 13, 2024 | Apr 20, 2024 | May 4, 2024 |
| № 3628 | N07 | W51 | 03 | 0240 | Alpha | Apr 10, 2024 | Apr 17, 2024 | Apr 30, 2024 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1995 to April 2024. The gray background is the average SSN index.
