No image for the selected date
Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on September 11, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1291 | N23 | W01 | 02 | 0010 | Beta | Sep 12, 2011 | Sep 19, 2011 | Oct 3, 2011 |
| № 1290 | S15 | E18 | 05 | 0050 | Beta | Sep 13, 2011 | Sep 20, 2011 | Oct 4, 2011 |
| № 1289 | N23 | E26 | 11 | 0450 | Beta | Sep 14, 2011 | Sep 21, 2011 | Oct 5, 2011 |
| № 1287 | S29 | W26 | 02 | 0070 | Alpha | Sep 10, 2011 | Sep 17, 2011 | Oct 1, 2011 |
| № 1283 | N13 | W71 | 07 | 0200 | Beta-Gamma | Sep 6, 2011 | Sep 13, 2011 | Sep 27, 2011 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1982 to September 2011. The gray background is the average SSN index.
