Reminds me a little bit of http://astrometry.net/ http://astrometry.net/ here is an overview: http://cosmo.nyu.edu/hogg/research/2006/09/28/astrometry_google

Reminds me a little bit of http://astrometry.net/ http://astrometry.net/ here is an overview: http://cosmo.nyu.edu/hogg/research/2006/09/28/astrometry_google.pdf http://cosmo.nyu.edu/hogg/research/2006/09/28/astrometry_goo... It's fun to read about but way over my head mathematically.