Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 22, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 341 | S10 | E74 | 04 | 0010 | Beta | Apr 29, 2003 | May 5, 2003 | May 19, 2003 |
| № 340 | S04 | E55 | 02 | 0010 | Alpha | Apr 27, 2003 | May 4, 2003 | May 17, 2003 |
| № 339 | N16 | W58 | 12 | 0050 | Beta | Apr 19, 2003 | Apr 25, 2003 | May 9, 2003 |
| № 338 | N18 | W05 | 25 | 0050 | Beta-Gamma | Apr 23, 2003 | Apr 29, 2003 | May 13, 2003 |
| № 337 | S13 | E43 | 22 | 0370 | Beta-Delta | Apr 26, 2003 | May 3, 2003 | May 17, 2003 |
| № 336 | N13 | E23 | 05 | 0120 | Beta | Apr 25, 2003 | May 2, 2003 | May 15, 2003 |
| № 335 | S24 | W43 | 03 | 0010 | Beta | Apr 20, 2003 | Apr 27, 2003 | May 11, 2003 |
| № 334 | S07 | W78 | 01 | 0020 | Alpha | Apr 17, 2003 | Apr 24, 2003 | May 7, 2003 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1974 to April 2003. The gray background is the average SSN index.
