Very Faint Star catalogue?

[bkm2304]

Hello good folk,

Does anyone know where I can get hold of an atlas/catalogue of stars down to very faint magnitudes? Currently the best I have is Skytools which, as far as I can work out, goes down to about mag 16/17. My observing with the G-Star is showing up stars that are simply beyond the limits of my current atlases - paper and software.:thumbsup:

[citivolus]

USNO-A2.0 goes down to about +21, and is a free download here: ftp://ftp.nofs.navy.mil/pub/outgoing/usnoa/

Edit: it is 5.88GB for those interested.

[DaveGee]

If you simply want an image then Google Sky goes down to about 20th mag.