Comet ISON's Position in mid-September

DateR.A.Dec.Mag.Dist.
Sep 0108h43m+22°01′+8.0(?)2.960
Sep 1509h05m+20°14′+8.0(?)2.593
Sep 3009h34m+17°40′+8.0(?)2.167

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.