The Area of The Ring Nebula(M57) in Lyra-C8/ST237 ccd camera @ f3.75; LRGB image 30:10:10:10 min. exposures; North Canton, Ohio 06/2003 Notes: This is an area of the sky that is often used by visual astronomers to determine the faintest stars visible in a particular size telescope. This  ccd image appears to have penetrated to about 19th magnitude in about 30 minutes of combined exposure on the 8 inch aperture.The faintest star visible in the 8 inch Schmidt/Cassegrain under ideal conditions would be about 14th magnitude or so.The central star in the ring is at about 15th magnitude.* An interesting feature of this fairly wide shot of the ring is the small spiral galaxy, IC1296, at the lower left of the ring. Mild DDP and L-R deconvolution were applied. * Brian A. Skiff-Taking Your Telescope to the Limit; Sky and Telescope, September 2001