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Lecture

Galaxies


Department
Astronomy
Course Code
ASTR 1P01
Professor
Bozidar Mitrovic

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ASTR 1P01 September
19, 2011
Galaxies
17, 000, 000 ly
Milky Way is in a cluster of Galaxies
Milky Way belongs to a cluster call Local Group
Local Group
Is a poor galaxy cluster because it contains less than 1000 galaxies
The clusters of galaxies form even bigger clusters called super-clusters
The Local Group belongs to a super-cluster
1, 700, 000, 000 ly
Clusters of galaxy clusters
Earth
Solar
System
Milky Way
Local Group
Local Super-Cluster
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