Chris Sells referred to my early screenshots (post 1, post 2) and commented on the way the stars were lined up 🙂 There is a good reason the stars look like that in those screenshots. I was using the personal version of the SDSS DR1 data (MySkyServer) that only include few tens of thousands of stars from a particular part of the sky. When, after the calculations of their distances, those stars are put in 3D, they appear as if they are all aligned in a single cone with its top representing earth (the position of the SLOAN telescope).
For my most recent tests (the queries are done by a background worker), I downloaded more stars from all around the sky. So, here’s how it looks in 3D with ~7,000 stars only. Again, note that the centre of the 3D space here is meant to be the SLOAN telescope (earth) while the camera is positioned to circle at a few thousands parsecs away (of course you don’t see the camera movement from this still 🙂
I am currently working on performance enhancements and the necessary logic to allow for lazy loading of the stars as the user moves the camera in 3D.
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