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What is the Milky Way?

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The Milky Way is the galaxy that we live in.

Wiki Quote:

"The Milky Way, sometimes called simply the Galaxy, is the galaxy in which the Solar System is located. It is a barred spiral galaxy that is part of the Local Group of galaxies. It is one of billions of galaxies in the observable universe."

SBbc (barred spiral galaxy)
100,000 light years
1,000 light years (stars)
Number of stars 
200 to 400 billion
Oldest known star 
13.2 billion years[1]
5.8 × 1011 M☉
Sun's distance to galactic center 
26,000 ± 1,400 light-years
Sun's galactic rotation period 
220 million years (negative rotation)
Spiral pattern rotation period 
50 million years[2]
Bar pattern rotation period 
15 to 18 million years[2]
Speed relative to CMB rest frame 
552 km/s[3]
Includes CC-BY-SA content from Wikipedia's Milky_Way article (authors)

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