athinker Posted April 22, 2011 Report Posted April 22, 2011 I would like to do some calculations. I may be able to produce a new tool for cosmology. To do the calculations I need a star catalog with the following information. A free online star catalog in ASCII format (not pdf) containing a large number of stars in our galaxy, selection of stars from the core to the outskirts of the disk. the rotation speeds of the stars relative to a "fixed" referance frame, say some distant quasars, the distances of the stars from the centers of their rotations. Any astronomers here that know of such a catalog? I think I can make a script to do a large number of calculations. I want to calculate the density to luminosity ratio of various parts of the galaxy to see if there is a universal consistancy to it. Quote
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