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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on June 21, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9511 | N11 | E55 | 01 | 0010 | Alpha | Jun 26, 2001 | Jul 3, 2001 | Jul 16, 2001 |
| № 9510 | S06 | W33 | 04 | 0020 | Beta | Jun 19, 2001 | Jun 26, 2001 | Jul 10, 2001 |
| № 9509 | S10 | W16 | 15 | 0050 | Beta | Jun 21, 2001 | Jun 27, 2001 | Jul 11, 2001 |
| № 9506 | N19 | E10 | 27 | 0250 | Beta-Gamma | Jun 23, 2001 | Jun 29, 2001 | Jul 13, 2001 |
| № 9505 | N22 | W05 | 03 | 0020 | Beta | Jun 21, 2001 | Jun 28, 2001 | Jul 12, 2001 |
| № 9504 | N09 | W15 | 05 | 0360 | Beta | Jun 21, 2001 | Jun 28, 2001 | Jul 11, 2001 |
| № 9503 | N16 | W18 | 49 | 0510 | Beta-Gamma | Jun 20, 2001 | Jun 27, 2001 | Jul 11, 2001 |
| № 9502 | S27 | W28 | 02 | 0030 | Beta | Jun 20, 2001 | Jun 27, 2001 | Jul 11, 2001 |
| № 9501 | S13 | W48 | 11 | 0120 | Beta | Jun 18, 2001 | Jun 25, 2001 | Jul 9, 2001 |
| № 9500 | N12 | W47 | 03 | 0020 | Beta | Jun 18, 2001 | Jun 25, 2001 | Jul 9, 2001 |
| № 9498 | N23 | W76 | 02 | 0000 | Alpha | Jun 16, 2001 | Jun 23, 2001 | Jul 7, 2001 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1972 to June 2001. The gray background is the average SSN index.
