Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 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) | |
|---|---|---|---|---|---|---|---|---|
| № 3518 | N13 | E77 | 01 | 0030 | Alpha | Dec 20, 2023 | Dec 26, 2023 | Jan 9, 2024 |
| № 3517 | N15 | W15 | 02 | 0010 | Beta | Dec 13, 2023 | Dec 20, 2023 | Jan 2, 2024 |
| № 3516 | S18 | E27 | 02 | 0040 | Beta | Dec 16, 2023 | Dec 23, 2023 | Jan 5, 2024 |
| № 3515 | S13 | E24 | 01 | 0010 | Alpha | Dec 16, 2023 | Dec 22, 2023 | Jan 5, 2024 |
| № 3514 | N10 | W20 | 07 | 0060 | Beta | Dec 12, 2023 | Dec 19, 2023 | Jan 2, 2024 |
| № 3513 | N18 | W26 | 07 | 0090 | Beta | Dec 12, 2023 | Dec 19, 2023 | Jan 1, 2024 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1994 to December 2023. The gray background is the average SSN index.
