Skip to main content
header search
ahihi OpenLearn
OpenLearn
Menu
sticky search

About this free course

Become an OU student

Download this course

Share this free course

Course content Course content
In the night sky: Orion
In the night sky: Orion

Start this free course now. Just create an account and sign in. Enrol and complete the course for a free statement of participation or digital badge if available.

More free courses
Back

emission line

A spectral line produced when atoms of a particular type emit photons with a specific energy.

» Orion Glossary