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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on May 28, 1997. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8047 | N26 | E64 | 04 | 0010 | BETA | Jun 3, 1997 | Jun 10, 1997 | Jun 24, 1997 |
| № 8046 | S26 | E10 | 05 | 0010 | BETA | May 30, 1997 | Jun 6, 1997 | Jun 20, 1997 |
| № 8045 | N02 | W89 | 04 | 0020 | BETA | May 23, 1997 | May 29, 1997 | Jun 12, 1997 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1968 to May 1997. The gray background is the average SSN index.
