Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 21, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 365 | S06 | E66 | 04 | 0130 | Beta | May 27, 2003 | Jun 3, 2003 | Jun 16, 2003 |
| № 364 | S24 | W42 | 12 | 0100 | Beta | May 19, 2003 | May 26, 2003 | Jun 9, 2003 |
| № 362 | S10 | E08 | 11 | 0090 | Beta-Gamma | May 23, 2003 | May 30, 2003 | Jun 12, 2003 |
| № 357 | S15 | W50 | 10 | 0050 | Beta | May 18, 2003 | May 25, 2003 | Jun 8, 2003 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1974 to May 2003. The gray background is the average SSN index.
