Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on June 27, 2004. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 638 | N07 | E22 | 02 | 0010 | Alpha | Jun 30, 2004 | Jul 6, 2004 | Jul 20, 2004 |
| № 637 | N09 | W03 | 11 | 0020 | Beta | Jun 28, 2004 | Jul 5, 2004 | Jul 18, 2004 |
| № 636 | S16 | W49 | 01 | 0000 | Alpha | Jun 24, 2004 | Jul 1, 2004 | Jul 15, 2004 |
| № 635 | S11 | W80 | 10 | 0360 | Beta-Gamma | Jun 22, 2004 | Jun 29, 2004 | Jul 12, 2004 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1975 to June 2004. The gray background is the average SSN index.
