No image for the selected date
Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 1, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8113 | N22 | E23 | 46 | 0940 | BETA-GAMMA-DELTA | Dec 4, 1997 | Dec 11, 1997 | Dec 24, 1997 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1968 to December 1997. The gray background is the average SSN index.
