Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 11, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9454 | N15 | E74 | 08 | 0300 | Beta | May 18, 2001 | May 24, 2001 | Jun 7, 2001 |
| № 9453 | S08 | W41 | 01 | 0010 | Alpha | May 9, 2001 | May 16, 2001 | May 29, 2001 |
| № 9452 | S09 | E27 | 01 | 0010 | Alpha | May 14, 2001 | May 21, 2001 | Jun 3, 2001 |
| № 9451 | S21 | W00 | 06 | 0130 | Beta | May 12, 2001 | May 19, 2001 | Jun 2, 2001 |
| № 9449 | S17 | W34 | 05 | 0060 | Beta | May 9, 2001 | May 16, 2001 | May 30, 2001 |
| № 9448 | N21 | W44 | 02 | 0110 | Alpha | May 9, 2001 | May 16, 2001 | May 29, 2001 |
| № 9445 | N21 | W88 | 01 | 0030 | Alpha | May 5, 2001 | May 12, 2001 | May 26, 2001 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1972 to May 2001. The gray background is the average SSN index.
