Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 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) | |
|---|---|---|---|---|---|---|---|---|
| № 3410 | S30 | W32 | 04 | 0010 | Beta | Aug 15, 2023 | Aug 22, 2023 | Sep 6, 2023 |
| № 3409 | N21 | W15 | 09 | 0030 | Beta | Aug 17, 2023 | Aug 24, 2023 | Sep 6, 2023 |
| № 3408 | S18 | W01 | 05 | 0010 | Beta | Aug 18, 2023 | Aug 25, 2023 | Sep 7, 2023 |
| № 3407 | S22 | E11 | 07 | 0190 | Beta | Aug 19, 2023 | Aug 26, 2023 | Sep 8, 2023 |
| № 3406 | S18 | W30 | 04 | 0010 | Beta | Aug 16, 2023 | Aug 22, 2023 | Sep 5, 2023 |
| № 3405 | N10 | E53 | 05 | 0180 | Beta | Aug 22, 2023 | Aug 29, 2023 | Sep 11, 2023 |
| № 3404 | S11 | E36 | 02 | 0050 | Alpha | Aug 21, 2023 | Aug 27, 2023 | Sep 10, 2023 |
| № 3403 | N22 | W07 | 12 | 0260 | Beta | Aug 17, 2023 | Aug 24, 2023 | Sep 7, 2023 |
| № 3397 | N16 | W68 | 02 | 0090 | Beta | Aug 13, 2023 | Aug 20, 2023 | Sep 2, 2023 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1994 to August 2023. The gray background is the average SSN index.
