Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 21, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 3469 | N27 | W40 | 06 | 0030 | Beta | Oct 19, 2023 | Oct 26, 2023 | Nov 9, 2023 |
| № 3468 | S10 | E12 | 02 | 0070 | Alpha | Oct 23, 2023 | Oct 30, 2023 | Nov 13, 2023 |
| № 3465 | N12 | W53 | 07 | 0030 | Alpha | Oct 18, 2023 | Oct 25, 2023 | Nov 8, 2023 |
| № 3464 | N04 | W78 | 01 | 0050 | Alpha | Oct 16, 2023 | Oct 23, 2023 | Nov 6, 2023 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1994 to October 2023. The gray background is the average SSN index.
