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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on July 23, 2013. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1800 | S08 | E09 | 08 | 0060 | Beta | Jul 25, 2013 | Jul 31, 2013 | Aug 14, 2013 |
| № 1799 | S15 | E09 | 01 | 0010 | Alpha | Jul 25, 2013 | Jul 31, 2013 | Aug 14, 2013 |
| № 1793 | N21 | W26 | 14 | 0170 | Beta | Jul 22, 2013 | Jul 29, 2013 | Aug 12, 2013 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1984 to July 2013. The gray background is the average SSN index.
