Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 17, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 3308 | N12 | W00 | 02 | 0010 | Beta | May 18, 2023 | May 25, 2023 | Jun 7, 2023 |
| № 3307 | S08 | E22 | 02 | 0010 | Alpha | May 20, 2023 | May 26, 2023 | Jun 9, 2023 |
| № 3306 | S18 | W64 | 02 | 0010 | Alpha | May 13, 2023 | May 20, 2023 | Jun 3, 2023 |
| № 3305 | N09 | W16 | 18 | 0100 | Beta | May 17, 2023 | May 24, 2023 | Jun 6, 2023 |
| № 3304 | N20 | W47 | 02 | 0010 | Alpha | May 14, 2023 | May 21, 2023 | Jun 4, 2023 |
| № 3302 | N18 | W22 | 04 | 0050 | Alpha | May 16, 2023 | May 23, 2023 | Jun 6, 2023 |
| № 3301 | N14 | W27 | 06 | 0030 | Alpha | May 16, 2023 | May 23, 2023 | Jun 5, 2023 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1994 to May 2023. The gray background is the average SSN index.
