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Unformatted text preview: light all visible colors o Light produced by jiggling of electrons Hotter it is the faster they move Constantly emitting light, faster they move the higher energy light they produce • Blue = higher energy o Coals – red because it produces red as well as infrared – why you can feel the heat Ice- reflecting blue, not producing blue • Black Bodies o Ignoring the absorption lines, the spectrum resembles that of a “black body” – perfect absorber and emitter- no reflected or transmitted light o QuickTime^ and a TIFF (Uncompressed) decompressor are needed to see this picture. QuickTime TIFF (LZW) are needed to s- Stephan- Boltzmann Law • sigma = constant • If planets have the same surface area, you can just take the ratio of the temperatures (6000/3000)^4...
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This note was uploaded on 04/04/2008 for the course ASTRO C 10 taught by Professor Filippenko during the Fall '08 term at Berkeley.
- Fall '08