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galactic plane |
Also found in: Encyclopedia, Wikipedia, Hutchinson | 0.03 sec. |
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galactic plane n (Astronomy) the plane passing through the spiral arms of the Galaxy How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Unlike any other known supernova remnant in the Milky Way, Kepler's supernova remnant lies 1,200 light-years above the galactic plane and is speeding even farther away. This structure, known as the Gould belt, passes through the galactic plane at a 20 [degrees] angle. For that star to be detected at EUV wavelengths, the density of interstellar gas had to be much lower in the direction of the galactic plane than astronomers had expected. |
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