To make things much easier, I wanted to render a grid to help with orientation. In planetary terms this would be a latitude/longitude grid, however the celestial equivalent is declination/right ascension respectively.
This was simply a matter of drawing line primitives on the surface of a sphere centered around the camera viewpoint. I chose not to converge all my lines of right ascension at the "poles", as shown below. The only drawback to this was that I had to draw multiple lines, since it's only possible to use just one if the lines converge.
One advantage of using multiple lines, however was that I have the option of varying the color for particular lines. For example, I might choose to make the "equator", or elliptical plane, more opaque.