Dust structures within 500 light-years of the Sun
May 13, 2010
The image spans about 50Â° of the sky. It is a three-colour combination constructed from Planck's two highest frequency channels (557 and 857 GHz, corresponding to wavelengths of 540 and 350 micrometres), and an image at the shorter wavelength of 100 micrometres made by the IRAS satellite. This combination visualises dust temperature very effectively: red corresponds to temperatures as cold as 10Â° above absolute zero, and white to those of a few tens of degrees. Overall, the image shows local dust structures within 500 light-years of the Sun.
Topics: Infrared telescopes, Spaceflight, Space exploration, Weather, Technology Internet, length, IRAS, Waves, Wavelength, Planck