Definition, Meaning & Synonyms

sunspot

noun
/ˈsʌn.spɒt/
Definition
A sunspot is a temporary phenomenon on the Sun’s photosphere that appears as a spot darker than the surrounding areas.
Examples
  • The scientist observed several sunspots during the solar eclipse.
  • Sunspots can affect space weather and electromagnetic radiation on Earth.
  • In 1783, William Herschel recorded the first sunspot observations.
Meaning
Sunspots are areas of reduced surface temperature on the Sun caused by magnetic activity, which inhibit convection currents and lead to cooler regions.
Synonyms
  • solar blemish
  • solar spot