Comet C/2011 Q2 (McNaught) makes its closest approach to the Earth (2.271 AU) on the 27th January, 2012
Comet C/2011 Q2 (McNaught) is at Perihelion (1.350 AU) on the 19th January, 2012
Ephemeris
Date TT R. A. (2000) Decl. Delta r Elong. Phase Mag
2012 01 01 19 32 24.0 -15 24 02 2.3244 1.3910 14.0 9.9 13.3 2012 01 02 19 35 30.7 -14 59 31 2.3218 1.3880 14.0 9.8 13.3 2012 01 03 19 38 37.4 -14 34 46 2.3193 1.3852 13.9 9.8 13.2 2012 01 04 19 41 44.0 -14 09 45 2.3168 1.3826 13.9 9.8 13.2 2012 01 05 19 44 50.6 -13 44 29 2.3145 1.3801 13.9 9.8 13.2 2012 01 06 19 47 57.0 -13 18 59 2.3122 1.3778 13.9 9.8 13.2 2012 01 07 19 51 03.3 -12 53 14 2.3099 1.3756 13.9 9.9 13.2 2012 01 08 19 54 09.6 -12 27 15 2.3078 1.3736 13.9 9.9 13.2 2012 01 09 19 57 15.7 -12 01 03 2.3058 1.3717 13.9 9.9 13.2 2012 01 10 20 00 21.8 -11 34 37 2.3038 1.3700 13.9 10.0 13.2 2012 01 11 20 03 27.7 -11 07 58 2.3019 1.3684 14.0 10.0 13.2 2012 01 12 20 06 33.6 -10 41 05 2.3002 1.3670 14.0 10.0 13.2 2012 01 13 20 09 39.3 -10 14 01 2.2985 1.3658 14.1 10.1 13.2 2012 01 14 20 12 45.0 -09 46 43 2.2969 1.3647 14.2 10.2 13.2 2012 01 15 20 15 50.5 -09 19 14 2.2954 1.3637 14.2 10.2 13.2 2012 01 16 20 18 56.0 -08 51 33 2.2940 1.3630 14.3 10.3 13.1 2012 01 17 20 22 01.3 -08 23 41 2.2928 1.3623 14.4 10.4 13.1 2012 01 18 20 25 06.6 -07 55 38 2.2916 1.3619 14.5 10.4 13.1 2012 01 19 20 28 11.8 -07 27 24 2.2905 1.3616 14.7 10.5 13.1 2012 01 20 20 31 16.8 -06 59 00 2.2896 1.3614 14.8 10.6 13.1 2012 01 21 20 34 21.8 -06 30 26 2.2888 1.3615 14.9 10.7 13.1 2012 01 22 20 37 26.6 -06 01 43 2.2880 1.3616 15.0 10.8 13.1 2012 01 23 20 40 31.4 -05 32 50 2.2874 1.3620 15.2 10.9 13.1 2012 01 24 20 43 36.0 -05 03 49 2.2869 1.3625 15.3 11.0 13.1 2012 01 25 20 46 40.6 -04 34 40 2.2866 1.3631 15.4 11.1 13.1 2012 01 26 20 49 45.0 -04 05 23 2.2863 1.3640 15.6 11.2 13.1 2012 01 27 20 52 49.3 -03 35 58 2.2862 1.3649 15.7 11.3 13.1 2012 01 28 20 55 53.6 -03 06 27 2.2862 1.3661 15.9 11.4 13.2 2012 01 29 20 58 57.7 -02 36 49 2.2863 1.3674 16.1 11.5 13.2 2012 01 30 21 02 01.7 -02 07 06 2.2866 1.3688 16.2 11.6 13.2 2012 01 31 21 05 05.6 -01 37 17 2.2870 1.3704 16.4 11.7 13.2
Orbital elements: C/2011 Q2 (McNaught) T 2012 Jan. 20.35656 TT MPC q 1.3614304 (2000.0) P Q Peri. 34.40144 +0.67420542 +0.46388839 Node 287.10928 -0.73679221 +0.47603246 e 1.0 Incl. 36.96217 +0.05083590 +0.74712827 From 51 observations 2011 Aug. 26-30.
MPEC 2011 - Q54
Comet C/2011 Q2 (MCNAUGHT) was discovered on the 26th August, 2011, by R. McNaught (Siding Spring Survey). The preliminary orbital elements of the comet indicate a perihelion passage on the 20th January, 2012, at a distance of 1.36 AU from the Sun.