Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 28, 2021. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2862 | S28 | W67 | 04 | 0050 | Beta | Aug 24, 2021 | Aug 31, 2021 | Sep 14, 2021 |
| № 2861 | N15 | E38 | 01 | 0010 | Alpha | Sep 1, 2021 | Sep 8, 2021 | Sep 21, 2021 |
| № 2860 | S28 | E03 | 22 | 0330 | Beta-Gamma | Aug 29, 2021 | Sep 5, 2021 | Sep 19, 2021 |
| № 2859 | N17 | W07 | 06 | 0050 | Beta | Aug 28, 2021 | Sep 4, 2021 | Sep 18, 2021 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1992 to August 2021. The gray background is the average SSN index.
