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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on June 30, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 640 | S07 | E43 | 04 | 0050 | Beta | Jul 4, 2004 | Jul 11, 2004 | Jul 24, 2004 |
| № 639 | N13 | E48 | 08 | 0150 | Beta | Jul 4, 2004 | Jul 11, 2004 | Jul 25, 2004 |
| № 637 | N08 | W43 | 08 | 0030 | Beta | Jun 28, 2004 | Jul 4, 2004 | Jul 18, 2004 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1975 to June 2004. The gray background is the average SSN index.
