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The milky way!
Transcript of The milky way!
The Milky Way is shaped like a huge whirlpool that rotates once every 200 million years. It is made up of at least 100 billion stars, as well as dust and gas. It is so big that light takes
100 000 years to cross from one side to the other.
The centre of the Galaxy is very hard to see because clouds of gas and dust block our view. Scientists think that it contains a super~massive black hole that swallows anything passing too close.
The milky way
Outside the main spiral are about 200 ball-shaped clusters of stars. Each 'globular cluster' is very old and contains up to one million stars. The Milky Way belongs to a cluster of at least 40 galaxies. The so called Local Group has two large spiral galaxies – the Milky Way and Andromeda.
The milky way
Stars, Stars, Stars
In one calculation, the Milky Way has a mass of about 100 billion solar masses, so it is easiest to translate that to 100 billion stars. This accounts for the stars that would be bigger or smaller than our sun, and averages them out. Other mass estimates bring the number up to 400 billion.
The Romans named the milky way "Via Lactea".
they got the name from the Greeks which translates to "the milky circle"
By Charlotte Clark