Active areas
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 564 | N14 | E42 | 07 | 0020 | Beta | Feb 26, 2004 | Mar 4, 2004 | Mar 18, 2004 |
| № 563 | S24 | E51 | 01 | 0020 | Alpha | Feb 27, 2004 | Mar 5, 2004 | Mar 19, 2004 |
| № 562 | S13 | E45 | 02 | 0020 | Beta | Feb 26, 2004 | Mar 4, 2004 | Mar 18, 2004 |
| № 561 | N02 | W15 | 02 | 0020 | Alpha | Feb 22, 2004 | Feb 29, 2004 | Mar 13, 2004 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1975, January to 2004, February. Gray background - average solar cycle.
