This is a cool project. One thing I was confused on at first tho was the large earth sphere in the center of a what looks like a spherical universe of galaxies. This makes it look more like a cloud of satellites orbiting earth.
Unfortunately this is what is possible to render with only celestial coordinates as input data. I'm looking into getting redshift at data right now, so that I could have the camera at the center of the earth and looking out from earth at different galaxies with different distances and brightness.