Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 16, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1322 | S27 | W50 | 04 | 0010 | Beta | Oct 13, 2011 | Oct 20, 2011 | Nov 3, 2011 |
| № 1321 | N13 | E53 | 02 | 0010 | Beta | Oct 21, 2011 | Oct 28, 2011 | Nov 10, 2011 |
| № 1320 | S21 | W64 | 04 | 0010 | Alpha | Oct 12, 2011 | Oct 19, 2011 | Nov 2, 2011 |
| № 1319 | N11 | E02 | 30 | 0240 | Beta | Oct 17, 2011 | Oct 24, 2011 | Nov 6, 2011 |
| № 1318 | N25 | W45 | 04 | 0020 | Beta | Oct 13, 2011 | Oct 20, 2011 | Nov 3, 2011 |
| № 1317 | S26 | E16 | 01 | 0080 | Alpha | Oct 18, 2011 | Oct 25, 2011 | Nov 8, 2011 |
| № 1316 | S12 | E04 | 11 | 0340 | Beta | Oct 17, 2011 | Oct 24, 2011 | Nov 7, 2011 |
| № 1314 | N28 | W03 | 04 | 0330 | Beta | Oct 17, 2011 | Oct 24, 2011 | Nov 7, 2011 |
| № 1313 | S16 | W63 | 05 | 0070 | Beta | Oct 12, 2011 | Oct 19, 2011 | Nov 2, 2011 |
| № 1312 | N23 | W67 | 01 | 0180 | Alpha | Oct 12, 2011 | Oct 19, 2011 | Nov 2, 2011 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1982 to October 2011. The gray background is the average SSN index.
