Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on July 31, 2000. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9109 | S06 | E27 | 04 | 0020 | BETA | Aug 3, 2000 | Aug 10, 2000 | Aug 23, 2000 |
| № 9108 | S12 | W31 | 01 | 0000 | ALPHA | Jul 30, 2000 | Aug 5, 2000 | Aug 19, 2000 |
| № 9107 | S18 | E56 | 05 | 0110 | BETA | Aug 5, 2000 | Aug 12, 2000 | Aug 26, 2000 |
| № 9106 | S10 | W58 | 04 | 0010 | BETA | Jul 28, 2000 | Aug 3, 2000 | Aug 17, 2000 |
| № 9105 | N16 | E40 | 01 | 0080 | ALPHA | Aug 4, 2000 | Aug 11, 2000 | Aug 25, 2000 |
| № 9104 | S20 | E24 | 01 | 0100 | ALPHA | Aug 3, 2000 | Aug 10, 2000 | Aug 24, 2000 |
| № 9103 | N11 | W26 | 15 | 0120 | BETA | Jul 30, 2000 | Aug 6, 2000 | Aug 19, 2000 |
| № 9100 | S29 | W43 | 01 | 0120 | ALPHA | Jul 29, 2000 | Aug 5, 2000 | Aug 19, 2000 |
| № 9099 | N16 | W69 | 01 | 0050 | ALPHA | Jul 27, 2000 | Aug 3, 2000 | Aug 16, 2000 |
| № 9097 | N08 | W83 | 05 | 0070 | BETA | Jul 26, 2000 | Aug 2, 2000 | Aug 15, 2000 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1971 to July 2000. The gray background is the average SSN index.
