Exploring Astronomy Photography Of Outer Space Universe

L2 = Δx2 + Δy2 + Δz2
using the Pythagorean theorem. In a rotated reference frame, the coordinate differences differ, but they give the same length

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Album name:	Earth & Universe
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Keywords:	#exploring #astronomy #photography #outer #space #universe
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Date added:	May 05, 2014
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