Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on February 18, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2802 | N19 | W23 | 02 | 0015 | Beta | Feb 17, 2021 | Feb 24, 2021 | Mar 10, 2021 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1992 to February 2021. The gray background is the average SSN index.
