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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on August 30, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1836 | N12 | E42 | 03 | 0160 | Alpha | Sep 3, 2013 | Sep 10, 2013 | Sep 24, 2013 |
| № 1835 | S10 | E13 | 07 | 0250 | Beta | Sep 1, 2013 | Sep 8, 2013 | Sep 21, 2013 |
| № 1834 | N14 | E07 | 15 | 0040 | Beta | Sep 1, 2013 | Sep 7, 2013 | Sep 21, 2013 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1984 to August 2013. The gray background is the average SSN index.
