Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 17, 2003. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 362 | S11 | E60 | 11 | 0240 | Beta | May 23, 2003 | May 30, 2003 | Jun 12, 2003 |
| № 361 | N08 | E21 | 07 | 0030 | Alpha | May 20, 2003 | May 27, 2003 | Jun 9, 2003 |
| № 359 | S14 | W79 | 02 | 0020 | Alpha | May 12, 2003 | May 19, 2003 | Jun 2, 2003 |
| № 358 | N08 | W34 | 03 | 0030 | Beta | May 16, 2003 | May 23, 2003 | Jun 5, 2003 |
| № 357 | S17 | E03 | 04 | 0050 | Beta | May 19, 2003 | May 25, 2003 | Jun 8, 2003 |
| № 356 | N18 | W33 | 10 | 0030 | Beta | May 16, 2003 | May 23, 2003 | Jun 5, 2003 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1974 to May 2003. The gray background is the average SSN index.
