Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on July 17, 2015. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2388 | N08 | W53 | 04 | 0020 | Beta | Jul 14, 2015 | Jul 21, 2015 | Aug 3, 2015 |
| № 2387 | N17 | E61 | 05 | 0030 | Beta | Jul 23, 2015 | Jul 29, 2015 | Aug 12, 2015 |
| № 2386 | N11 | E18 | 02 | 0070 | Alpha | Jul 19, 2015 | Jul 26, 2015 | Aug 9, 2015 |
| № 2384 | S18 | W43 | 04 | 0090 | Alpha | Jul 15, 2015 | Jul 22, 2015 | Aug 4, 2015 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1986 to July 2015. The gray background is the average SSN index.
