Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 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) | |
|---|---|---|---|---|---|---|---|---|
| № 3468 | S09 | E71 | 01 | 0080 | Alpha | Oct 23, 2023 | Oct 30, 2023 | Nov 13, 2023 |
| № 3467 | N13 | E44 | 02 | 0010 | Alpha | Oct 21, 2023 | Oct 28, 2023 | Nov 11, 2023 |
| № 3466 | N08 | W60 | 05 | 0010 | Beta | Oct 13, 2023 | Oct 20, 2023 | Nov 3, 2023 |
| № 3465 | N11 | E05 | 06 | 0190 | Alpha | Oct 18, 2023 | Oct 25, 2023 | Nov 8, 2023 |
| № 3464 | N04 | W17 | 09 | 0100 | Beta | Oct 17, 2023 | Oct 23, 2023 | Nov 6, 2023 |
| № 3463 | S17 | W28 | 12 | 0010 | Alpha | Oct 16, 2023 | Oct 23, 2023 | Nov 5, 2023 |
| № 3460 | S10 | W85 | 01 | 0030 | Alpha | Oct 11, 2023 | Oct 18, 2023 | Nov 1, 2023 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1994 to October 2023. The gray background is the average SSN index.
