Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on February 12, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9350 | N18 | E71 | 01 | 0060 | Alpha | Feb 18, 2001 | Feb 25, 2001 | Mar 11, 2001 |
| № 9349 | N28 | E48 | 01 | 0040 | Alpha | Feb 17, 2001 | Feb 24, 2001 | Mar 10, 2001 |
| № 9348 | N11 | W06 | 06 | 0010 | Beta | Feb 12, 2001 | Feb 19, 2001 | Mar 5, 2001 |
| № 9347 | N04 | E40 | 04 | 0050 | Beta | Feb 16, 2001 | Feb 23, 2001 | Mar 8, 2001 |
| № 9345 | S20 | W18 | 06 | 0020 | Beta | Feb 11, 2001 | Feb 18, 2001 | Mar 4, 2001 |
| № 9341 | S09 | W41 | 03 | 0010 | Beta | Feb 10, 2001 | Feb 17, 2001 | Mar 2, 2001 |
| № 9339 | S08 | W17 | 09 | 0120 | Beta | Feb 12, 2001 | Feb 18, 2001 | Mar 4, 2001 |
| № 9338 | S20 | W26 | 21 | 0210 | Beta | Feb 11, 2001 | Feb 18, 2001 | Mar 4, 2001 |
| № 9335 | N11 | W41 | 02 | 0000 | Alpha | Feb 10, 2001 | Feb 17, 2001 | Mar 2, 2001 |
| № 9334 | N12 | W53 | 05 | 0040 | Beta | Feb 9, 2001 | Feb 16, 2001 | Mar 1, 2001 |
| № 9330 | N22 | W89 | 01 | 0000 | Alpha | Feb 6, 2001 | Feb 13, 2001 | Feb 27, 2001 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1972 to February 2001. The gray background is the average SSN index.
