Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 12, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 3432 | S24 | W74 | 03 | 0010 | Beta | Sep 7, 2023 | Sep 14, 2023 | Sep 28, 2023 |
| № 3431 | S07 | E47 | 05 | 0050 | Beta-Delta | Sep 17, 2023 | Sep 23, 2023 | Oct 7, 2023 |
| № 3430 | S16 | W05 | 07 | 0030 | Beta | Sep 13, 2023 | Sep 19, 2023 | Oct 3, 2023 |
| № 3429 | N10 | E46 | 04 | 0030 | Beta-Gamma | Sep 16, 2023 | Sep 23, 2023 | Oct 7, 2023 |
| № 3428 | N14 | W62 | 01 | 0005 | Alpha | Sep 8, 2023 | Sep 15, 2023 | Sep 29, 2023 |
| № 3427 | S27 | E02 | 03 | 0010 | Beta | Sep 13, 2023 | Sep 20, 2023 | Oct 4, 2023 |
| № 3425 | N25 | E01 | 24 | 0100 | Beta | Sep 13, 2023 | Sep 20, 2023 | Oct 4, 2023 |
| № 3423 | N16 | W30 | 21 | 0420 | Beta-Gamma | Sep 11, 2023 | Sep 18, 2023 | Oct 1, 2023 |
| № 3421 | N15 | W91 | 04 | 0010 | Beta | Sep 6, 2023 | Sep 13, 2023 | Sep 27, 2023 |
| № 3418 | N20 | W93 | 01 | 0020 | Alpha | Sep 6, 2023 | Sep 13, 2023 | Sep 27, 2023 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1994 to September 2023. The gray background is the average SSN index.
