Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 28, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 3292 | N14 | E62 | 01 | 0010 | Alpha | May 4, 2023 | May 11, 2023 | May 24, 2023 |
| № 3291 | N09 | W02 | 20 | 0030 | Beta | Apr 29, 2023 | May 6, 2023 | May 19, 2023 |
| № 3290 | N24 | W59 | 03 | 0010 | Beta | Apr 24, 2023 | May 1, 2023 | May 15, 2023 |
| № 3289 | N20 | E51 | 05 | 0180 | Beta | May 3, 2023 | May 10, 2023 | May 24, 2023 |
| № 3288 | S23 | W07 | 29 | 0380 | Beta-Gamma-Delta | Apr 28, 2023 | May 5, 2023 | May 19, 2023 |
| № 3286 | S11 | W02 | 03 | 0010 | Beta | Apr 29, 2023 | May 6, 2023 | May 19, 2023 |
| № 3285 | S19 | W10 | 05 | 0240 | Beta | Apr 28, 2023 | May 5, 2023 | May 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.
