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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on April 14, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8031 | S30 | W52 | 09 | 0060 | BETA | Apr 11, 1997 | Apr 18, 1997 | May 2, 1997 |
| № 8029 | N24 | W76 | 05 | 0030 | BETA | Apr 9, 1997 | Apr 16, 1997 | Apr 30, 1997 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1968 to April 1997. The gray background is the average SSN index.
