Comet ISON's Position Throughout December

Date R.A. Dec. Mag. Dist.
Dec 01 16h19m -13°02′ +0.0(?) 0.850
Dec 15 16h11m +15°49′ +1.0(?) 0.524
Dec 31 16h37m +68°53′ +4.0(?) 0.445

The table gives the comet’s equatorial coordinates – right ascension (R.A.) and declination (Dec.) – at 01:00 Universal Time on selected dates. Also listed are the visual magnitude and the distance from the Earth in astronomical units. One a.u. equals 92,955,807 miles or 149,597,870 kilometers.