Asset Publisher

Black body radiation as a function of wavelength and temperature

Black body radiation as a function of wavelength and temperature


Date: 26 September 2011
Depicts: Graph showing black body radiation as a function of wavelength and temperature
Copyright: ESA / AOES Medialab

The two graphs in this figure show three black body radiation curves, corresponding to bodies at different temperatures, as a function of wavelength. On the vertical axis, the intensity of the energy emitted by each body is shown in arbitrary units.

The violet curve corresponds to a body at 10,000 K (e.g. the surface of a hot and massive star) and peaks at ultraviolet wavelengths, the green curve corresponds to 6000 K (e.g. the surface of a mid-size star, such as the Sun) and peaks at visible wavelengths, and the orange curve corresponds to 3500 K (e.g. the surface of a cool and low-mass star) and peaks at infrared wavelengths.

The panel on the right shows a close-up of the inset enclosed in the red frame: hotter objects emit more radiation than colder objects over all wavelengths, but the shape of the curve remains the same.

Last Update: 1 September 2019
22-Apr-2024 18:56 UT

ShortUrl Portlet

Shortcut URL

https://sci.esa.int/s/8dL5Mz8

Also Available As

Related Images

Related Videos

Related Publications

Related Links

See Also

Documentation