Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 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) | |
|---|---|---|---|---|---|---|---|---|
| № 3412 | N30 | E46 | 01 | 0040 | Alpha | Aug 25, 2023 | Sep 2, 2023 | Sep 16, 2023 |
| № 3411 | N13 | E12 | 01 | 0050 | Alpha | Aug 23, 2023 | Aug 30, 2023 | Sep 12, 2023 |
| № 3409 | N22 | W68 | 03 | 0010 | Beta | Aug 17, 2023 | Aug 24, 2023 | Sep 6, 2023 |
| № 3407 | S18 | W43 | 08 | 0180 | Beta | Aug 19, 2023 | Aug 25, 2023 | Sep 8, 2023 |
| № 3405 | N09 | W02 | 02 | 0090 | Beta | Aug 22, 2023 | Aug 28, 2023 | Sep 11, 2023 |
| № 3404 | S10 | W18 | 01 | 0000 | Alpha | Aug 20, 2023 | Aug 27, 2023 | Sep 10, 2023 |
| № 3403 | N27 | W59 | 07 | 0120 | Beta | Aug 17, 2023 | Aug 24, 2023 | Sep 7, 2023 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1994 to August 2023. The gray background is the average SSN index.
