Comet Update: Comet ISON has broken up and Comet Lovejoy is still visible
Comet C/2012 S1 (ISON):
Comet ISON managed to survive its close encounter with the Sun on 28 November 2013. The comet however took a tremendous amount of damage. The comet's nucleus (center) has been broken into pieces and what remain are a burnt cinder and a bunch of debris. The remains of Comet ISON will not be visible to the unaided eye or seen in binoculars. The comet is now so dim and faded that it's not even visible in most amateur telescopes. Comet C/2012 S1 ISON was partly destroyed by the Sun and now has faded away.
Comet C/2013 R1 (Lovejoy)
This comet is still visible in the Pre-Dawn Eastern sky. The comet will be in the southern part of the Constellation of Hercules for the rest of the month of December. There is a short Moon free observing window for the comet up till 15 December 2013. After that the Moon will be in the Pre-Dawn sky. During this short observing window; the comet will be near a part of the Constellation of Hercules which is known as the "Keystone". The comet appears to the unaided eye as a faint elongated streak of light with a dim roundish head. Binoculars will greatly enhance the view of Comet C/2013 R1 Lovejoy.
Gary T. Nowak
Vermont Astronomical Society