Questions tagged [space]

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Where to find number of objects in space per altitude?

What I want is the sources to plot a graph such as the figure 3-3 on this page but: Containing all objects whose size is greater than 10cm (including operational satellites) Raw numbers (the best ...
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Where is the largest catalog of galaxies available for download?

Looking at the List of Galaxies Wikipedia Page, it says: There are about 51 galaxies in the Local Group (see list of nearest galaxies for a complete list), on the order of 100,000 in our Local ...