Like this study set? Create a free account to save it.

Sign up for an account

Already have a Quizlet account? .

Create an account

Chapter 5 Vocabulary


Wanders or heavenly bodies that revolve around a star


is the shape of the orbit that planets travel around the sun on


When a planet is closest to the sun


When a planet is farthest away from the sun

Astronomical unit

The earths average distance from the sun is called one astronomical unit


the ratio of light reflected by a planet


a measure of the amount of matter the planet contain


heaviness of the mass... can change based on gravity

Surface Gravity

A planets size and mass together determine SG


of a planet is the amount and shape of the planets illuminated surface that is visible from the earth


a planet passes firectly between the earth and the sun so we see the silhouette against the suns bright disk

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions and try again


Reload the page to try again!


Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

Voice Recording