I need your銆€advice for the astronomy problem.?

A certain telescope has a 5' X 5' field of view that is recorded using a CCD chip having 4096 X 4096 pixels.





What angle on the sky corresponds to 1 pixel?





胃=????? arc second.





What would be the diameter, in pixels, of a typical seeing disk (1鈥?radius)?





胃=????? arc second.I need your銆€advice for the astronomy problem.?
You try playing around with the numbers with programs like these -


http://www.ccdimages.com/ccdcaculator.as鈥?/a>


http://www.newastro.com/book_new/camera_鈥?/a>


http://www.visi.com/~sleikind/ccd.htmlI need your銆€advice for the astronomy problem.?
Not even enough to get a photo of a small crater on the moon