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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 17, 2012. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 1485 | S20 | E53 | 04 | 0010 | Beta | May 22, 2012 | May 29, 2012 | Jun 12, 2012 |
| № 1484 | N09 | E40 | 09 | 0120 | Beta | May 21, 2012 | May 28, 2012 | Jun 10, 2012 |
| № 1483 | S26 | E15 | 01 | 0010 | Alpha | May 19, 2012 | May 26, 2012 | Jun 9, 2012 |
| № 1482 | N13 | E12 | 09 | 0130 | Beta | May 19, 2012 | May 26, 2012 | Jun 8, 2012 |
| № 1481 | S10 | E21 | 01 | 0010 | Alpha | May 19, 2012 | May 26, 2012 | Jun 9, 2012 |
| № 1479 | N10 | E03 | 03 | 0050 | Beta | May 18, 2012 | May 25, 2012 | Jun 7, 2012 |
| № 1478 | S22 | W21 | 01 | 0060 | Alpha | May 16, 2012 | May 23, 2012 | Jun 6, 2012 |
| № 1477 | S21 | W30 | 01 | 0010 | Alpha | May 16, 2012 | May 22, 2012 | Jun 5, 2012 |
| № 1476 | N13 | W71 | 03 | 0230 | Beta | May 12, 2012 | May 19, 2012 | Jun 2, 2012 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1983 to May 2012. The gray background is the average SSN index.
