Astronomy Fundamentals

Time, Waves, and Particles

What are visible light waves?

Visible light waves are electromagnetic waves whose wavelengths range between about 3.5 x 10–7 and 7 x 10–7 meters. This is the kind of electromagnetic radiation that human eyes can detect. It can roughly be divided into seven colors: violet, indigo, blue, green, yellow, orange, and red.


This is a web preview of the "The Handy Astronomy Answer Book" app. Many features only work on your mobile device. If you like what you see, we hope you will consider buying. Get the App