Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 31, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 695 | S15 | E70 | 02 | 0100 | Beta | Nov 6, 2004 | Nov 13, 2004 | Nov 27, 2004 |
| № 694 | N15 | W04 | 05 | 0020 | Beta | Nov 1, 2004 | Nov 7, 2004 | Nov 21, 2004 |
| № 693 | S16 | E36 | 29 | 0530 | Beta-Gamma | Nov 4, 2004 | Nov 10, 2004 | Nov 24, 2004 |
| № 692 | S19 | W52 | 02 | 0000 | Alpha | Oct 28, 2004 | Nov 4, 2004 | Nov 17, 2004 |
| № 691 | N14 | W23 | 24 | 0200 | Beta-Gamma | Oct 30, 2004 | Nov 6, 2004 | Nov 20, 2004 |
| № 690 | N01 | W25 | 06 | 0040 | Beta | Oct 30, 2004 | Nov 6, 2004 | Nov 19, 2004 |
| № 689 | N12 | W41 | 01 | 0020 | Alpha | Oct 29, 2004 | Nov 5, 2004 | Nov 18, 2004 |
| № 687 | N12 | W64 | 04 | 0090 | Alpha | Oct 27, 2004 | Nov 3, 2004 | Nov 16, 2004 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1975 to October 2004. The gray background is the average SSN index.
