Astronomy Midterm Review

Front

What is the estimated time since the Big Bang occurred?

Back

Approximately 13.7 billion years ago.

Front

What is the tilt of the Earth's axis in degrees?

Back

23.5 degrees.

Front

What is the longest day of the year called?

Back

Summer solstice.

Front

Which category contains the most stars?

Back

Main Sequence.

Front

What happens to galaxies in our expanding universe?

Back

Galaxies appear to move away due to the expansion of space itself.

Front

What is the term for the phenomenon where light from distant galaxies shifts to longer wavelengths?

Back

Redshift.

Front

What is the center of our solar system?

Back

The Sun.

Front

What is the name of the galaxy that contains our solar system?

Back

The Milky Way.

Front

What is the term for the path that planets take around the Sun?

Back

Orbit.

Front

What is the largest planet in our solar system?

Back

Jupiter.