Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on July 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) | |
|---|---|---|---|---|---|---|---|---|
| № 413 | N18 | E45 | 01 | 0030 | Alpha | Jul 22, 2003 | Jul 29, 2003 | Aug 11, 2003 |
| № 412 | N16 | E15 | 08 | 0030 | Beta | Jul 19, 2003 | Jul 26, 2003 | Aug 9, 2003 |
| № 411 | N15 | E49 | 02 | 0060 | Alpha | Jul 22, 2003 | Jul 29, 2003 | Aug 12, 2003 |
| № 410 | S12 | E24 | 08 | 0070 | Beta-Gamma | Jul 20, 2003 | Jul 27, 2003 | Aug 10, 2003 |
| № 409 | N16 | E26 | 34 | 0300 | Beta | Jul 20, 2003 | Jul 27, 2003 | Aug 10, 2003 |
| № 408 | N14 | W21 | 01 | 0010 | Alpha | Jul 17, 2003 | Jul 24, 2003 | Aug 6, 2003 |
| № 407 | N10 | W40 | 03 | 0010 | Beta | Jul 15, 2003 | Jul 22, 2003 | Aug 5, 2003 |
| № 406 | S17 | W82 | 01 | 0010 | Alpha | Jul 12, 2003 | Jul 19, 2003 | Aug 2, 2003 |
| № 405 | S11 | W03 | 05 | 0050 | Beta | Jul 18, 2003 | Jul 25, 2003 | Aug 7, 2003 |
| № 401 | S09 | W77 | 01 | 0040 | Alpha | Jul 12, 2003 | Jul 19, 2003 | Aug 2, 2003 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1974 to July 2003. The gray background is the average SSN index.
