Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on July 23, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2849 | S18 | E62 | 02 | 0020 | Alpha | Jul 29, 2021 | Aug 5, 2021 | Aug 18, 2021 |
| № 2848 | N21 | E03 | 02 | 0010 | Beta | Jul 24, 2021 | Jul 31, 2021 | Aug 14, 2021 |
| № 2847 | S28 | E48 | 01 | 0040 | Alpha | Jul 28, 2021 | Aug 4, 2021 | Aug 18, 2021 |
| № 2846 | N26 | E36 | 04 | 0100 | Beta | Jul 27, 2021 | Aug 3, 2021 | Aug 17, 2021 |
| № 2845 | S16 | W74 | 04 | 0040 | Beta | Jul 18, 2021 | Jul 25, 2021 | Aug 8, 2021 |
| № 2842 | N25 | W79 | 04 | 0080 | Beta | Jul 18, 2021 | Jul 25, 2021 | Aug 8, 2021 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1992 to July 2021. The gray background is the average SSN index.
