Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 16, 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 | S10 | E73 | 03 | 0070 | Beta | May 23, 2003 | May 30, 2003 | Jun 12, 2003 |
| № 361 | N09 | E35 | 02 | 0020 | Alpha | May 20, 2003 | May 27, 2003 | Jun 9, 2003 |
| № 360 | S05 | W38 | 01 | 0010 | Alpha | May 14, 2003 | May 21, 2003 | Jun 4, 2003 |
| № 359 | S10 | W62 | 02 | 0020 | Alpha | May 13, 2003 | May 19, 2003 | Jun 2, 2003 |
| № 358 | N08 | W21 | 07 | 0070 | Beta | May 16, 2003 | May 23, 2003 | Jun 5, 2003 |
| № 357 | S17 | E14 | 03 | 0040 | Beta | May 18, 2003 | May 25, 2003 | Jun 8, 2003 |
| № 356 | N18 | W21 | 09 | 0060 | 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.