Comet ISON (C/2012 S1) is visible through a telescope in the early morning hours. I captured this image on the morning of October 6, 2013.
Total exposure time was 24 minutes (twelve 2-minute exposures), tracking the comet, which moved appreciably against the background of stars during that time. This image was processed in a special way to prevent smearing, and to preserve the stars as points of light.
Comet ISON will swing around very close to the sun on November 28. If it survives its fiery encounter, it may be visible on the other side during the evening.
Check the Sky and Telescope magazine website for updates.