The Sun

The video explains the significance of the sun among millions of stars, highlighting that it is a common, middle-sized yellow star. It compares the sun to other stars like Sirius and Betelgeuse, noting their larger sizes. The sun appears large from Earth due to its proximity, being the largest body in our solar system. It contains 99.9% of the solar system's mass and is 1 million times larger than Earth. The video also discusses the time it takes for light from the sun and other stars to reach Earth, emphasizing the vast distances in space.

Which of the following stars is larger than the sun?

• Vega

• Alpha Centauri

• Proxima Centauri

• Sirius

Why does the sun appear larger than other stars when viewed from Earth?

• It is the largest star in the universe.

• It is much closer to Earth than other stars.

• It is the only star visible during the day.

• It is the brightest star in the galaxy.

What percentage of the solar system's mass does the sun contain?

• 75%

• 99.9%

• 100%

• 50%

How long does it take for light from the sun to reach Earth?

• 8 seconds

• 8 days

• 8 minutes

• 8 hours

Compared to the sun, how do other stars appear in the night sky?

• As dark spots

• As colorful streaks

• As tiny points of light

• As large and bright as the sun