Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 15, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 3520 | N07 | W46 | 01 | 0120 | Alpha | Dec 13, 2023 | Dec 19, 2023 | Jan 2, 2024 |
| № 3519 | S12 | E28 | 15 | 0200 | Beta | Dec 18, 2023 | Dec 25, 2023 | Jan 8, 2024 |
| № 3518 | N13 | E51 | 03 | 0020 | Beta | Dec 20, 2023 | Dec 27, 2023 | Jan 9, 2024 |
| № 3517 | N11 | W41 | 02 | 0010 | Alpha | Dec 13, 2023 | Dec 20, 2023 | Jan 2, 2024 |
| № 3516 | S17 | W01 | 01 | 0010 | Alpha | Dec 16, 2023 | Dec 23, 2023 | Jan 5, 2024 |
| № 3515 | S12 | W01 | 01 | 0010 | Alpha | Dec 16, 2023 | Dec 23, 2023 | Jan 5, 2024 |
| № 3514 | N05 | W50 | 21 | 0470 | Beta-Delta | Dec 12, 2023 | Dec 19, 2023 | Jan 2, 2024 |
| № 3513 | N18 | W54 | 02 | 0100 | 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.
