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I was reading about star clusters and super clusters and wanted to find out if all galaxies are in some such cluster, small or large. Instead, on the internet, I ended up with contradictory sites. Two are talking about the Local Group which contains our Milky Way, Andromeda and a few others. One site - Encyclopedia 2 - says the Local Group is a loose cluster. Another site at Yahoo says the Local Group is not a cluster.
For the sake of my question, let's just ask if all galaxies are in some sort of cluster - local group or super cluster - whatever you want to call it. Or are there "free roaming" (my term, not scientific) galaxies that are in no such group, large or small? "Loners" we could call them.
I was reading about star clusters and super clusters and wanted to find out if all galaxies are in some such cluster, small or large. Instead, on the internet, I ended up with contradictory sites. Two are talking about the Local Group which contains our Milky Way, Andromeda and a few others. One site - Encyclopedia 2 - says the Local Group is a loose cluster. Another site at Yahoo says the Local Group is not a cluster.
For the sake of my question, let's just ask if all galaxies are in some sort of cluster - local group or super cluster - whatever you want to call it. Or are there "free roaming" (my term, not scientific) galaxies that are in no such group, large or small? "Loners" we could call them.
Thank you.
The structure of our local group contains about 54 galaxies (more or less). It in turn is part of the much larger Virgo Supercluster (called a local supercluster) contains other local groups. A supercluster is the next scale up from local groups.
Field galaxies. Thank you, Bazaar. I want to read that - today, this morning, before I even open the New York Times.
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