MILKY WAY NOTES - READING ?'s

Front

What is the equivalent of 206,000 Astronomical Units in Parsecs?

Back

1 pc

Front

Which unit is used to measure the distance a star must be for parallax to be observed?

Back

Parsec

Front

Which unit is larger, an astronomical unit (AU) or a light year (ly)?

Back

Light Year

Front

What does 'AU' stand for in astronomical measurements?

Back

Astronomical Unit

Front

What is the significance of Alpha Centauri in astronomy?

Back

It is the closest star system to the Solar System.

Front

Define Astronomical Unit (AU).

Back

A unit of measurement equal to the average distance from the Earth to the Sun, approximately 93 million miles or 150 million kilometers.

Front

What is a Parsec?

Back

A unit of distance used in astronomy, equal to about 3.26 light years or 206,265 AU.

Front

How many kilometers are in a light year?

Back

Approximately 9.46 trillion kilometers.

Front

What is the distance of Alpha Centauri from Earth?

Back

About 4.37 light years.

Front

What is the primary use of the light year as a unit of measurement?

Back

To measure astronomical distances, particularly between stars and galaxies.