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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on March 5, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8481 | S18 | W26 | 02 | 0010 | BETA | Mar 4, 1999 | Mar 11, 1999 | Mar 24, 1999 |
| № 8480 | N25 | E41 | 02 | 0000 | ALPHA | Mar 9, 1999 | Mar 16, 1999 | Mar 30, 1999 |
| № 8479 | S14 | W43 | 05 | 0020 | BETA | Mar 3, 1999 | Mar 9, 1999 | Mar 23, 1999 |
| № 8478 | S16 | W50 | 04 | 0020 | BETA | Mar 2, 1999 | Mar 9, 1999 | Mar 23, 1999 |
| № 8477 | S32 | E30 | 13 | 0130 | BETA | Mar 8, 1999 | Mar 15, 1999 | Mar 30, 1999 |
| № 8476 | N18 | W33 | 18 | 0200 | BETA | Mar 3, 1999 | Mar 10, 1999 | Mar 24, 1999 |
| № 8475 | N32 | W21 | 14 | 0100 | BETA | Mar 4, 1999 | Mar 11, 1999 | Mar 26, 1999 |
| № 8471 | N28 | W62 | 06 | 0180 | BETA | Mar 1, 1999 | Mar 8, 1999 | Mar 22, 1999 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1970 to March 1999. The gray background is the average SSN index.
