Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on June 13, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 632 | S11 | E38 | 02 | 0070 | Alpha | Jun 17, 2004 | Jun 24, 2004 | Jul 7, 2004 |
| № 631 | S10 | E02 | 06 | 0020 | Beta | Jun 14, 2004 | Jun 21, 2004 | Jul 5, 2004 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1975 to June 2004. The gray background is the average SSN index.
