Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 23, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9470 | S15 | W19 | 03 | 0010 | Beta | May 23, 2001 | May 29, 2001 | Jun 12, 2001 |
| № 9469 | N08 | W71 | 04 | 0050 | Beta | May 19, 2001 | May 25, 2001 | Jun 8, 2001 |
| № 9468 | N07 | E53 | 04 | 0070 | Beta | May 28, 2001 | Jun 4, 2001 | Jun 17, 2001 |
| № 9467 | S05 | E42 | 01 | 0060 | Alpha | May 27, 2001 | Jun 3, 2001 | Jun 16, 2001 |
| № 9466 | S02 | E26 | 03 | 0010 | Alpha | May 26, 2001 | Jun 2, 2001 | Jun 15, 2001 |
| № 9465 | S10 | E34 | 06 | 0040 | Beta | May 27, 2001 | Jun 2, 2001 | Jun 16, 2001 |
| № 9464 | S08 | E23 | 01 | 0010 | Alpha | May 26, 2001 | Jun 2, 2001 | Jun 15, 2001 |
| № 9463 | N10 | E18 | 30 | 0380 | Beta-Gamma | May 25, 2001 | Jun 1, 2001 | Jun 15, 2001 |
| № 9462 | N21 | E09 | 03 | 0080 | Beta | May 25, 2001 | Jun 1, 2001 | Jun 14, 2001 |
| № 9461 | N22 | W19 | 04 | 0080 | Beta | May 23, 2001 | May 29, 2001 | Jun 12, 2001 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1972 to May 2001. The gray background is the average SSN index.
