Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 27, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 3449 | N15 | E47 | 04 | 0030 | Beta-Gamma | Oct 2, 2023 | Oct 8, 2023 | Oct 22, 2023 |
| № 3448 | N13 | E59 | 01 | 0090 | Alpha | Oct 2, 2023 | Oct 9, 2023 | Oct 23, 2023 |
| № 3447 | S22 | W06 | 06 | 0070 | Beta | Sep 28, 2023 | Oct 4, 2023 | Oct 18, 2023 |
| № 3445 | S13 | W23 | 37 | 0210 | Beta-Gamma | Sep 26, 2023 | Oct 3, 2023 | Oct 17, 2023 |
| № 3444 | N22 | W27 | 01 | 0005 | Alpha | Sep 26, 2023 | Oct 3, 2023 | Oct 17, 2023 |
| № 3443 | N26 | W95 | 06 | 0240 | Beta-Gamma | Sep 21, 2023 | Sep 28, 2023 | Oct 12, 2023 |
| № 3442 | S09 | W28 | 01 | 0020 | Alpha | Sep 26, 2023 | Oct 3, 2023 | Oct 16, 2023 |
| № 3441 | N06 | W89 | 05 | 0020 | Beta | Sep 21, 2023 | Sep 28, 2023 | Oct 12, 2023 |
| № 3440 | N18 | W33 | 02 | 0040 | Alpha | Sep 25, 2023 | Oct 2, 2023 | Oct 16, 2023 |
| № 3435 | N09 | W51 | 16 | 0200 | Beta-Delta | Sep 24, 2023 | Oct 1, 2023 | Oct 15, 2023 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1994 to September 2023. The gray background is the average SSN index.
