Front

What is a Solar System?

Back

A star and all bodies that orbit around that star.

Front

How does distance affect a star's brightness?

Back

The closer a star is, the brighter it appears.

Front

Why can we see the Sun during the day but not other stars?

Back

The Sun is much closer and brighter than other stars.

Front

Which star appears brighter if one is 10 light-years away and another is 20 light-years away?

Back

The star 10 light-years away.

Front

Is the Sun the largest star in the universe?

Back

No, the Sun is an average-sized star.

Front

What is a star?

Back

A massive, luminous sphere of plasma held together by gravity.

Front

What is the main difference between the Sun and other stars?

Back

The Sun is much closer to Earth than other stars.

Front

What is apparent brightness?

Back

The brightness of a star as seen from Earth.

Front

What is a light-year?

Back

The distance that light travels in one year.

Front

What is the Milky Way?

Back

The galaxy that contains our Solar System.