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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 26, 1999. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8499 | N22 | W53 | 03 | 0070 | BETA | Mar 23, 1999 | Mar 30, 1999 | Apr 13, 1999 |
| № 8498 | N17 | E39 | 03 | 0060 | ALPHA | Mar 30, 1999 | Apr 6, 1999 | Apr 20, 1999 |
| № 8497 | N29 | E22 | 01 | 0080 | ALPHA | Mar 29, 1999 | Apr 5, 1999 | Apr 19, 1999 |
| № 8496 | S11 | W92 | 01 | 0000 | ALPHA | Mar 20, 1999 | Mar 27, 1999 | Apr 10, 1999 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1970 to March 1999. The gray background is the average SSN index.
