The Sun Facts for Kids

The Sun is the heart of our solar system and its gravity is what keeps every planet and particle in orbit. This yellow dwarf star is just one of billions like it across the Milky Way galaxy.

  • A huge eruptive prominence (a fiery loop of gas) leaving the sun.
  • An X-ray photo of the Sun – lots of violent eruptions!
  • A super close-up of a solar flare – WOW!
  • Sunpots – up close and personal
  • The Sun’s fiery and eruptive surface
  • A photo of a solar eclipse showing explosive prominences!
  • A nice diagram of the Sun’s “anatomy”
  • Shows a solar eclipse which happened in November, 1994 (QuickTime format)
  • The November, 1994 solar eclipse (MPEG format)
  • A video clip from Our Star the Sun, describing the Sun’s past (AVI format)
  • A video clip from Our Star the Sun, describing the Sun (AVI format)
  • A corona animation showing solar prominences (AVI format)

Sun Notes

~ The Sun is a star – it is not a planet. Our Sun is just like the stars we see in the night sky. The Sun is also the only star we see during the daytime.

~ The Sun is so big that you could fit more than 1 million earths inside of it! It measures more than a million kilometers across.

~ The Sun’s center is about 15 million degrees Celsius. The Sun is so hot that planets millions of kilometers away can feel its heat… That’s mighty hot!

~ The Sun is about 75% hydrogen and 25% helium. This changes slowly over time as the Sun converts hydrogen to helium in its core (center).

~ The Sun’s energy is produced by nuclear fusion reactions. It generates 386 billion billion megawatts of energy!