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• The distance between one peak or crest of a wave (of light, heat, or other energy) and the next corresponding peak or crest. Wavelengths of light from the Sun range from radio waves to gamma rays.

  NASA - Cite This Source - This Definition
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  Cite Definition for Wavelength

  American Psychological Association (APA)

  Wavelength. (n.d.). NASA Helioviewer.org Visual Glossary. Retrieved March 28, 2023, from website: http://www.expertglossary.com/definition/wavelength.

  Chicago Manual of Style (CMS)

  Wavelength. helioviewer.nascom.nasa.gov. NASA Helioviewer.org Visual Glossary. NASA. http://www.expertglossary.com/definition/wavelength (accessed: March 28, 2023).

  Modern Language Association (MLA)

  "Wavelength." NASA Helioviewer.org Visual Glossary. NASA. 28 March. 2023 http://www.expertglossary.com/definition/wavelength.

• Browse Related Terms: 171, Electromagnetic Spectrum, Faculae, Gamma Rays, Infrared, Infrared (IR) Radiation, Ionization, radiation, Radio Waves, Solar Flare, Solar Ultraviolet Irradiance, Spectrograph, spectrum, Ultraviolet, Visible Light, Wavelength, X-Rays

All > Science > Astronomy > Astrophysics

• Usually designated by Lambda. This is the geometrical measurement of one complete oscillation, or period of any wave. For visible light this is on the order of 500 nanometers. Graphically, a wavelength is usually one cycle (up and down) of a sine wave.

  Lawrence Berkeley National Laboratory's Physics Division - Cite This Source - This Definition
  ×

  Cite Definition for Wavelength

  American Psychological Association (APA)

  Wavelength. (n.d.). The Universe Adventure Glossary. Retrieved March 28, 2023, from website: http://www.expertglossary.com/definition/wavelength.

  Chicago Manual of Style (CMS)

  Wavelength. pdgusers.lbl.gov. The Universe Adventure Glossary. Lawrence Berkeley National Laboratory's Physics Division. http://www.expertglossary.com/definition/wavelength (accessed: March 28, 2023).

  Modern Language Association (MLA)

  "Wavelength." The Universe Adventure Glossary. Lawrence Berkeley National Laboratory's Physics Division. 28 March. 2023 http://www.expertglossary.com/definition/wavelength.

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