noun
- a dark patch that appears temporarily on the sun’s surface
Usage: astronomy
Examples
- Astronomers observed several large sunspots through their telescopes.
- The sunspot cycle typically lasts about eleven years.
- Solar flares often occur near sunspots on the sun’s surface.
- Scientists study sunspots to understand solar magnetic activity.
- The dark sunspot was clearly visible against the bright solar disk.
- Sunspot activity can affect radio communications on Earth.