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Author Topic: Science  (Read 10628 times)

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AGelbert

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How BIG Is The Milky Way?
« Reply #120 on: June 16, 2021, 03:38:14 pm »
The visible part of our galaxy is only 10% of the TOTAL MASS!

How BIG Is The Milky Way?

The Milky Way Galaxy (visibile part)
"The artist's concept also includes a new spiral arm, called the "Far-3 kiloparsec arm," discovered via a radio-telescope survey of gas in the Milky Way. This arm is shorter than the two major arms and lies along the bar of the galaxy.

Our Sun lies near a small, partial arm called the Orion Arm, or Orion Spur, located between the Sagittarius and Perseus arms."

Source: NASA/JPL-Caltech/R. Hurt (SSC/Caltech)
Published: November 8, 2017

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