noun
- dark patches that appear on the surface of the sun, caused by magnetic activity
Usage: astronomy
Examples
- Astronomers observed several large sunspots through their telescopes.
- The number of sunspots varies in an eleven-year cycle.
- Sunspots can affect radio communications on Earth.
- During periods of high solar activity, more sunspots are visible.
- The dark sunspots contrast sharply with the bright solar surface.
- Scientists study sunspots to understand the sun’s magnetic field.