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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on June 13, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8052 | N17 | E38 | 03 | 0020 | BETA | Jun 17, 1997 | Jun 24, 1997 | Jul 8, 1997 |
| № 8050 | N29 | E01 | 03 | 0020 | BETA | Jun 14, 1997 | Jun 21, 1997 | Jul 5, 1997 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1968 to June 1997. The gray background is the average SSN index.
