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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 28, 2010. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1063 | N16 | E28 | 02 | 0010 | Beta | May 1, 2010 | May 8, 2010 | May 22, 2010 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1981 to April 2010. The gray background is the average SSN index.
