Sunspots and active regions — October 20, 2023
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 3468 | S10 | E25 | 01 | 0070 | Alpha | Oct 23, 2023 | Oct 30, 2023 | Nov 13, 2023 |
| № 3465 | N12 | W41 | 07 | 0080 | Alpha | Oct 18, 2023 | Oct 25, 2023 | Nov 8, 2023 |
| № 3464 | N04 | W66 | 01 | 0070 | Alpha | Oct 16, 2023 | Oct 23, 2023 | Nov 6, 2023 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1994, January to 2023, October. Gray background - average solar cycle.
