Stars and Galaxy Review

Front

What is apparent magnitude?

Back

Apparent magnitude is a measure of how bright a star appears from Earth.

Front

What do all stars begin as?

Back

All stars begin as a nebula.

Front

What components best define a galaxy?

Back

A galaxy is defined by gas, dust, and billions of stars.

Front

What does a light year measure?

Back

A light year measures distance.

Front

Which element is NOT represented in the star spectrum: Hydrogen, Helium, Calcium, Magnesium?

Back

Helium is NOT represented in the star spectrum.

Front

What is absolute magnitude?

Back

Absolute magnitude is a measure of the intrinsic brightness of a star, as if it were placed at a standard distance of 10 parsecs from Earth.

Front

What is a nebula?

Back

A nebula is a giant cloud of gas and dust in space, often the birthplace of stars.

Front

What is the difference between a galaxy and a solar system?

Back

A galaxy contains billions of stars, gas, and dust, while a solar system consists of a star and the celestial bodies that orbit it.

Front

What is a black hole?

Back

A black hole is a region in space where the gravitational pull is so strong that nothing, not even light, can escape from it.

Front

What is the Milky Way?

Back

The Milky Way is the galaxy that contains our solar system, composed of billions of stars.