Glossary of Space Exploration Terminology

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Photometer
Photometer
An optical instrument that measures the intensity of light from a source.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Rocketry & Space Technology

Glossary courtesy of Robert Braeunig's
Rocketry & Space Technology website.