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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on June 21, 2011. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1240 | S17 | E44 | 01 | 0010 | Alpha | Jun 25, 2011 | Jul 2, 2011 | Jul 16, 2011 |
| № 1239 | N18 | E15 | 05 | 0010 | Beta | Jun 23, 2011 | Jun 30, 2011 | Jul 14, 2011 |
| № 1236 | N17 | W05 | 07 | 0230 | Beta-Gamma | Jun 21, 2011 | Jun 28, 2011 | Jul 12, 2011 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1982 to June 2011. The gray background is the average SSN index.
