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Research QuestionGalaxies come in two major types: spiral and elliptical. But some galaxies are so small and faint that it's hard to tell what type they are. How can you classify these small, faint galaxies? Things you might think about
Tools that might help you (all links open in new windows)Navigate: use this tool to get data on single galaxies Search Form: use this tool to search for data on many galaxies. See the user's guide to learn how to use the tool. Image List: use this tool to get thumbnail images of galaxies that meet your search criteria SQL Search: use this tool to write complex Structured Query Language (SQL) searches for galaxies Science background (new windows)Galaxy Zoo (a project where you can classify galaxies) Classifying Messier galaxies (from the Students for the Exploration and Development of Space) Hints and cautions (new windows)If you look at spectra, study the line labels carefully. Not all of them are element names! You can use SQL aggregate functions (like avg, min, max) to do your analysis. Look at the data points for "petroR50_g" and "petroR90_r" in the Galaxy table in the Schema Browser. What do those terms mean?
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