Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 13, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 3279 | S20 | E60 | 07 | 0150 | Beta | Apr 19, 2023 | Apr 25, 2023 | May 9, 2023 |
| № 3278 | N13 | W34 | 02 | 0010 | Beta | Apr 11, 2023 | Apr 18, 2023 | May 2, 2023 |
| № 3277 | N10 | E08 | 03 | 0020 | Beta | Apr 15, 2023 | Apr 21, 2023 | May 5, 2023 |
| № 3276 | S21 | E52 | 01 | 0020 | Alpha | Apr 18, 2023 | Apr 25, 2023 | May 9, 2023 |
| № 3275 | N19 | E35 | 01 | 0040 | Alpha | Apr 17, 2023 | Apr 24, 2023 | May 7, 2023 |
| № 3273 | N10 | W14 | 11 | 0090 | Beta | Apr 13, 2023 | Apr 20, 2023 | May 3, 2023 |
| № 3272 | S22 | W02 | 32 | 0250 | Beta-Gamma | Apr 14, 2023 | Apr 21, 2023 | May 5, 2023 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1994 to April 2023. The gray background is the average SSN index.
