Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 4, 2001. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9449 | S16 | E54 | 01 | 0070 | Alpha | May 9, 2001 | May 16, 2001 | May 30, 2001 |
| № 9448 | N21 | E44 | 06 | 0100 | Beta | May 9, 2001 | May 16, 2001 | May 29, 2001 |
| № 9447 | N12 | W30 | 21 | 0090 | Beta | May 3, 2001 | May 10, 2001 | May 23, 2001 |
| № 9445 | N25 | E07 | 30 | 0240 | Beta-Gamma | May 6, 2001 | May 13, 2001 | May 27, 2001 |
| № 9444 | S11 | W04 | 04 | 0010 | Alpha | May 5, 2001 | May 12, 2001 | May 25, 2001 |
| № 9442 | N27 | W33 | 01 | 0050 | Alpha | May 3, 2001 | May 10, 2001 | May 24, 2001 |
| № 9441 | N07 | W47 | 13 | 0220 | Beta-Gamma | May 2, 2001 | May 8, 2001 | May 22, 2001 |
| № 9436 | S11 | W88 | 01 | 0050 | Alpha | Apr 29, 2001 | May 5, 2001 | May 19, 2001 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1972 to May 2001. The gray background is the average SSN index.
