Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on July 15, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1255 | N17 | E41 | 03 | 0010 | Alpha | Jul 19, 2011 | Jul 26, 2011 | Aug 9, 2011 |
| № 1254 | S22 | E55 | 01 | 0030 | Beta | Jul 21, 2011 | Jul 27, 2011 | Aug 10, 2011 |
| № 1252 | N25 | E52 | 02 | 0020 | Alpha | Jul 20, 2011 | Jul 27, 2011 | Aug 10, 2011 |
| № 1251 | N17 | E26 | 02 | 0100 | Alpha | Jul 18, 2011 | Jul 25, 2011 | Aug 8, 2011 |
| № 1250 | S27 | W11 | 10 | 0100 | Beta | Jul 15, 2011 | Jul 22, 2011 | Aug 5, 2011 |
| № 1245 | N14 | W40 | 01 | 0005 | Alpha | Jul 13, 2011 | Jul 20, 2011 | Aug 3, 2011 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1982 to July 2011. The gray background is the average SSN index.
