Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 12, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 357 | S16 | E70 | 03 | 0040 | Beta | May 18, 2003 | May 25, 2003 | Jun 8, 2003 |
| № 356 | N16 | E36 | 02 | 0060 | Beta | May 16, 2003 | May 23, 2003 | Jun 5, 2003 |
| № 354 | N17 | W32 | 01 | 0000 | Alpha | May 11, 2003 | May 17, 2003 | May 31, 2003 |
| № 351 | N09 | W67 | 01 | 0150 | Alpha | May 8, 2003 | May 15, 2003 | May 28, 2003 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1974 to May 2003. The gray background is the average SSN index.
