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galactic plane

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galactic plane

In astronomy, plane passing through the Sun and the centre of our Galaxy defining the mid-plane of the galactic disc. Projected onto the celestial sphere, the galactic plane is the galactic equator, a great circle marking the approximate centre line of the Milky Way.



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? Mentioned in ? References in periodicals archive
 
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.
Explosive tales: a modern look at two old supernovas by Cowen, Ron / Science News
This structure, known as the Gould belt, passes through the galactic plane at a 20 [degrees] angle.
Craft spies new class of gamma-ray sources by Cowen, R. / Science News
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.
The sun's environs: a bubble burst? by Peterson, Ivars / Science News
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