Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 4, 2023. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 3270 | S23 | W16 | 11 | 0140 | Beta-Gamma-Delta | Apr 4, 2023 | Apr 11, 2023 | Apr 24, 2023 |
| № 3266 | N10 | W23 | 03 | 0030 | Beta | Apr 3, 2023 | Apr 10, 2023 | Apr 23, 2023 |
| № 3264 | N17 | W58 | 01 | 0100 | Alpha | Mar 31, 2023 | Apr 7, 2023 | Apr 21, 2023 |
| № 3262 | S16 | W84 | 01 | 0150 | Alpha | Mar 29, 2023 | Apr 5, 2023 | Apr 19, 2023 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1994 to April 2023. The gray background is the average SSN index.
