Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 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) | |
|---|---|---|---|---|---|---|---|---|
| № 3525 | S09 | E45 | 04 | 0020 | Beta | Dec 21, 2023 | Dec 28, 2023 | Jan 11, 2024 |
| № 3524 | N26 | E63 | 02 | 0020 | Alpha | Dec 23, 2023 | Dec 30, 2023 | Jan 13, 2024 |
| № 3523 | N21 | E62 | 02 | 0020 | Alpha | Dec 23, 2023 | Dec 30, 2023 | Jan 12, 2024 |
| № 3522 | S04 | E25 | 04 | 0010 | Beta | Dec 20, 2023 | Dec 27, 2023 | Jan 9, 2024 |
| № 3521 | N12 | E57 | 01 | 0030 | Alpha | Dec 22, 2023 | Dec 29, 2023 | Jan 12, 2024 |
| № 3520 | N08 | W75 | 05 | 0080 | Beta | Dec 12, 2023 | Dec 19, 2023 | Jan 2, 2024 |
| № 3519 | S12 | W02 | 18 | 0130 | Beta | Dec 18, 2023 | Dec 25, 2023 | Jan 7, 2024 |
| № 3518 | N13 | E21 | 03 | 0010 | Alpha | Dec 20, 2023 | Dec 26, 2023 | Jan 9, 2024 |
| № 3516 | S18 | W29 | 01 | 0010 | Alpha | Dec 16, 2023 | Dec 23, 2023 | Jan 5, 2024 |
| № 3514 | N05 | W82 | 12 | 0300 | Beta-Gamma | Dec 12, 2023 | Dec 19, 2023 | Jan 1, 2024 |
| № 3513 | N18 | W82 | 01 | 0070 | Alpha | 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.
