Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 18, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 3284 | S08 | E73 | 02 | 0030 | Beta | Apr 24, 2023 | May 1, 2023 | May 15, 2023 |
| № 3283 | S20 | E39 | 06 | 0040 | Beta | Apr 22, 2023 | Apr 29, 2023 | May 12, 2023 |
| № 3282 | N11 | E13 | 21 | 0390 | Beta-Gamma | Apr 20, 2023 | Apr 27, 2023 | May 10, 2023 |
| № 3281 | S22 | E16 | 16 | 0160 | Beta-Gamma | Apr 20, 2023 | Apr 27, 2023 | May 11, 2023 |
| № 3280 | S08 | W78 | 03 | 0160 | Beta-Gamma | Apr 13, 2023 | Apr 20, 2023 | May 3, 2023 |
| № 3279 | S19 | W03 | 15 | 0080 | Beta | Apr 19, 2023 | Apr 25, 2023 | May 9, 2023 |
| № 3276 | S22 | W17 | 04 | 0010 | Alpha | Apr 18, 2023 | Apr 24, 2023 | May 8, 2023 |
| № 3275 | N19 | W30 | 01 | 0010 | Alpha | Apr 17, 2023 | Apr 23, 2023 | May 7, 2023 |
| № 3272 | S22 | W69 | 04 | 0010 | Beta | Apr 14, 2023 | Apr 20, 2023 | May 4, 2023 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1994 to April 2023. The gray background is the average SSN index.
