Milky Way Galaxy
by Mark Garlick/science Photo Library
Title
Milky Way Galaxy
Artist
Mark Garlick/science Photo Library
Medium
Photograph - Photograph
Description
Milky Way galaxy. Computer artwork and diagram of our Milky Way galaxy from above, with the arms and the central bar in their approximate known locations. The Milky Way is around 100,000 light years across and contains hundreds of billions of stars. There are four major arms, and one arm fragment (Orion-Cygnus) where the Sun is found. The yellow dot indicates the position of the Solar System, about 25,000 light years from the galactic core. The Norma and Outer arms are in fact the same, but the two names refer to different parts of it. The same is true of the so-called 3kpc (3 kilo-parsec) arm, which further out becomes the Perseus arm.
Uploaded
September 12th, 2018
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