Photon Scattering: Basic Principle of Photon Scattering . Audio Narration is available . No Scattering: Photon Source and Detector . ... For optical photons, scattering goes as wavelength to the -4 power. In the case of blue photons compared to red...
... This is a planetary nebula (see also the Planetary Nebula page on this server). It is relatively small, measuring approximately 8x4 arcminutes. ...
... It is also known as the Ring Nebula. ... The object itself is known as a Plantary Nebula because, in a small telescope, these ... star away, thus revealing a hotter star (the central star of the Planetary nebula ...
... For a schematic figure of the structure of a star that leads to the formation of a Planetary Nebula Click Here . ... For a schematic representation of how a planetary nebula is ionized Click Here . M61 image More about M61 . ...
... M8 is also knowns as the lagoon nebula. ... The overall extent of the nebula is approximately 1 x 1/2 degrees. ... and the scattering by the dust gives rise to the observed structure of the nebula ...