No image for the selected date
Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 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) | |
|---|---|---|---|---|---|---|---|---|
| № 2348 | S11 | E36 | 01 | 0110 | Alpha | May 21, 2015 | May 27, 2015 | Jun 10, 2015 |
| № 2347 | N04 | E01 | 01 | 0010 | Alpha | May 18, 2015 | May 25, 2015 | Jun 7, 2015 |
| № 2346 | S08 | E02 | 05 | 0020 | Beta | May 18, 2015 | May 25, 2015 | Jun 7, 2015 |
| № 2344 | S09 | W11 | 02 | 0030 | Alpha | May 17, 2015 | May 24, 2015 | Jun 6, 2015 |
| № 2342 | N17 | W33 | 02 | 0060 | Alpha | May 15, 2015 | May 22, 2015 | Jun 5, 2015 |
| № 2341 | S20 | W43 | 02 | 0060 | Alpha | May 15, 2015 | May 21, 2015 | Jun 4, 2015 |
| № 2339 | N11 | W70 | 20 | 0300 | Beta-Gamma | May 13, 2015 | May 19, 2015 | Jun 2, 2015 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1986 to May 2015. The gray background is the average SSN index.
