Milky Way Galaxy

Milky Way Galaxy

Milky Way Galaxy

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The Milky Way is the galaxy that contains our Solar System.

The Milky Way is a barred spiral galaxy that has a diameter usually considered to be about 100,000–120,000 light-years[28] but may be 150,000–180,000 light-years.[29] The Milky Way is estimated to contain 100–400 billion stars.[30][31] There are likely at least 100 billion planets in the Milky Way.[32][33] The Solar System is located within the disk, about 27,000 light-years from the Galactic Center, on the inner edge of one of the spiral-shaped concentrations of gas and dust called the Orion Arm. The stars in the inner ≈10,000 light-years form a bulge and one or more bars that radiate from the bulge. The very center is marked by an intense radio source, named Sagittarius A*, which is likely to be a supermassive black hole.

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