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A sample map of the universe
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Research Question
Make a map of the universe. The easiest way to make this map is to search a wide range of
RA and a narrow range of dec to get a 2-D slice through the full 3-D map. But can you make a map in 3-D?
What does the universe look like? Can you quantify the spacing between walls of galaxies?
Things you might think about
What does redshift mean? Can you convert redshift to distance? Do you need to? How does the expansion of the universe affect the map?
Tools that might help you (all links open in new windows)
Search Form: use this tool to
search for the positions of many galaxies to make your map. See the
user's guide to learn how to use the tool.
SQL Search: use this tool to write complex
Structured Query Language (SQL) searches for galaxies that you can use to make your map
Science background (new windows)
SDSS "How Big is Big?" press release, about the scale of the universe
What is large-scale structure?
"Universe" at Wikipedia
Hints and cautions (new windows)
Your data is polar (redshift -> r, RA -> θ), while Excel can only graph x-y quantities. How will you
overcome this problem?
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