Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 13, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9456 | N06 | W04 | 10 | 0060 | Beta | May 14, 2001 | May 20, 2001 | Jun 3, 2001 |
| № 9455 | S16 | E03 | 22 | 0190 | Beta | May 14, 2001 | May 21, 2001 | Jun 4, 2001 |
| № 9454 | N13 | E46 | 16 | 0410 | Beta-Gamma | May 17, 2001 | May 24, 2001 | Jun 7, 2001 |
| № 9452 | S10 | E02 | 02 | 0000 | Beta | May 14, 2001 | May 21, 2001 | Jun 4, 2001 |
| № 9451 | S21 | W26 | 04 | 0130 | Beta | May 12, 2001 | May 19, 2001 | Jun 2, 2001 |
| № 9449 | S16 | W61 | 02 | 0010 | Alpha | May 9, 2001 | May 16, 2001 | May 30, 2001 |
| № 9448 | N22 | W71 | 01 | 0100 | Alpha | May 9, 2001 | May 15, 2001 | May 29, 2001 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1972 to May 2001. The gray background is the average SSN index.
