[icefox]

Finally I have a justification for making an android application that will tell you where you are based upon photographing the stars.

[iuygtfrgth]

Useful when you absolutely definitely need to be there on time - and the other side has just destroyed your GPS satellites

http://books.google.ca/books?id=QymEXZIWEe8C&pg=PA332&#3...

[ecyrb]

Might find this useful: http://astrometry.net/