C/2009 O4 (Hill)
Orbital Elements
The following orbital elements are taken from MPC 67147:C/2009 O4 (Hill) Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 T 2010 Jan. 1.2817 TT MPC q 2.563791 (2000.0) P Q z -0.000352 Peri. 223.7321 +0.7084693 -0.6950652 +/-0.000030 Node 172.9388 +0.1281328 +0.2970852 e 1.000903 Incl. 95.8292 -0.6940124 -0.6546944 From 627 observations 2009 July 30-Sept. 27, mean residual 0".5.An explanation of the orbital elements is available.
These orbital elements are also available in forms suitable for loading into a number of popular planetarium-type software programs.
Ephemeris
The following ephemeris is at intervals of five days. A daily ephemeris covering the same time interval is also available.Personalized ephemerides for this (and other) objects may be generated using the Minor Planet & Comet Ephemeris Service.
Recent magnitude estimates for this comet (as reported to the ICQ) may be available.
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2 2009 10 26 22 54.21 -36 56.5 2.100 2.663 113.9 20.0 15.9 2009 10 31 22 49.32 -38 24.6 2.169 2.649 107.9 20.9 15.9 2009 11 05 22 45.29 -39 40.6 2.241 2.636 102.3 21.6 16.0 2009 11 10 22 42.15 -40 45.8 2.315 2.624 96.8 22.0 16.0 2009 11 15 22 39.90 -41 41.7 2.390 2.614 91.7 22.2 16.1 2009 11 20 22 38.53 -42 29.5 2.465 2.604 86.8 22.3 16.1 2009 11 25 22 38.03 -43 10.6 2.539 2.595 82.1 22.1 16.2 2009 11 30 22 38.35 -43 46.1 2.611 2.587 77.7 21.9 16.2 2009 12 05 22 39.46 -44 16.9 2.680 2.581 73.6 21.5 16.3 2009 12 10 22 41.30 -44 43.8 2.747 2.575 69.6 21.0 16.3 2009 12 15 22 43.84 -45 07.5 2.810 2.571 65.9 20.5 16.3 2009 12 20 22 47.06 -45 28.6 2.869 2.567 62.5 19.9 16.4 2009 12 25 22 50.89 -45 47.6 2.925 2.565 59.2 19.2 16.4 2009 12 30 22 55.32 -46 05.1 2.975 2.564 56.3 18.6 16.5 2010 01 04 23 00.31 -46 21.4 3.022 2.564 53.6 18.0 16.5 2010 01 09 23 05.83 -46 36.8 3.063 2.565 51.3 17.4 16.5 2010 01 14 23 11.86 -46 51.6 3.100 2.567 49.2 16.9 16.6 2010 01 19 23 18.40 -47 06.1 3.131 2.571 47.5 16.4 16.6 2010 01 24 23 25.42 -47 20.6 3.158 2.575 46.1 16.0 16.6 2010 01 29 23 32.91 -47 35.2 3.180 2.581 45.1 15.7 16.6 2010 02 03 23 40.86 -47 50.1 3.197 2.588 44.5 15.5 16.7 2010 02 08 23 49.28 -48 05.4 3.209 2.596 44.2 15.4 16.7 2010 02 13 23 58.17 -48 21.4 3.217 2.604 44.3 15.4 16.7 2010 02 18 00 07.54 -48 38.0 3.221 2.614 44.8 15.4 16.7 2010 02 23 00 17.38 -48 55.5 3.222 2.625 45.5 15.6 16.7 2010 02 28 00 27.72 -49 13.8 3.218 2.637 46.6 15.8 16.7 2010 03 05 00 38.56 -49 32.9 3.211 2.650 47.9 16.1 16.8 2010 03 10 00 49.93 -49 52.9 3.202 2.664 49.4 16.4 16.8 2010 03 15 01 01.84 -50 13.6 3.190 2.679 51.1 16.8 16.8 2010 03 20 01 14.32 -50 35.0 3.177 2.695 52.9 17.1 16.8 2010 03 25 01 27.37 -50 56.9 3.162 2.712 54.8 17.5 16.8 2010 03 30 01 41.02 -51 19.2 3.146 2.730 56.8 17.8 16.9 2010 04 04 01 55.27 -51 41.5 3.130 2.748 58.8 18.1 16.9 2010 04 09 02 10.13 -52 03.6 3.114 2.768 60.9 18.4 16.9 2010 04 14 02 25.62 -52 25.0 3.099 2.788 62.9 18.7 16.9 2010 04 19 02 41.72 -52 45.4 3.085 2.809 64.9 18.9 16.9 2010 04 24 02 58.40 -53 04.4 3.073 2.831 66.8 19.0 17.0 2010 04 29 03 15.62 -53 21.4 3.063 2.854 68.6 19.2 17.0 2010 05 04 03 33.34 -53 35.9 3.057 2.877 70.3 19.3 17.0 2010 05 09 03 51.49 -53 47.6 3.053 2.901 71.8 19.3 17.0 2010 05 14 04 09.99 -53 56.1 3.054 2.926 73.2 19.3 17.1 2010 05 19 04 28.74 -54 01.2 3.058 2.951 74.4 19.3 17.1 2010 05 24 04 47.61 -54 02.6 3.067 2.977 75.4 19.2 17.2 2010 05 29 05 06.50 -54 00.2 3.080 3.003 76.1 19.1 17.2 2010 06 03 05 25.29 -53 54.2 3.099 3.031 76.7 19.0 17.3 2010 06 08 05 43.87 -53 44.8 3.122 3.058 77.0 18.9 17.3 2010 06 13 06 02.13 -53 32.2 3.149 3.087 77.2 18.7 17.4 2010 06 18 06 19.98 -53 17.0 3.181 3.115 77.1 18.5 17.4 2010 06 23 06 37.34 -52 59.7 3.218 3.145 76.7 18.3 17.5 2010 06 28 06 54.14 -52 40.8 3.259 3.174 76.2 18.1 17.6 2010 07 03 07 10.36 -52 20.7 3.304 3.204 75.5 17.9 17.7 2010 07 08 07 25.95 -52 00.2 3.352 3.235 74.6 17.6 17.7 2010 07 13 07 40.92 -51 39.7 3.404 3.266 73.6 17.4 17.8 2010 07 18 07 55.25 -51 19.8 3.458 3.298 72.4 17.1 17.9 2010 07 23 08 08.95 -51 00.8 3.515 3.329 71.2 16.8 18.0 2010 07 28 08 22.03 -50 43.1 3.574 3.361 69.8 16.5 18.0 2010 08 02 08 34.51 -50 26.9 3.634 3.394 68.4 16.1 18.1 2010 08 07 08 46.42 -50 12.7 3.695 3.427 66.9 15.8 18.2 2010 08 12 08 57.78 -50 00.5 3.757 3.460 65.4 15.4 18.3 2010 08 17 09 08.62 -49 50.6 3.818 3.493 63.9 15.1 18.3 2010 08 22 09 18.94 -49 42.9 3.880 3.527 62.4 14.7 18.4 2010 08 27 09 28.78 -49 37.5 3.940 3.561 61.0 14.4 18.5 2010 09 01 09 38.15 -49 34.5 4.000 3.595 59.6 14.0 18.6 2010 09 06 09 47.09 -49 33.8 4.057 3.630 58.3 13.7 18.6 2010 09 11 09 55.59 -49 35.5 4.113 3.665 57.1 13.3 18.7 2010 09 16 10 03.68 -49 39.5 4.167 3.699 56.0 13.0 18.8 2010 09 21 10 11.36 -49 45.7 4.218 3.735 55.0 12.7 18.8 2010 09 26 10 18.65 -49 54.0 4.267 3.770 54.3 12.5 18.9 2010 10 01 10 25.54 -50 04.3 4.312 3.806 53.7 12.2 19.0 2010 10 06 10 32.05 -50 16.6 4.354 3.841 53.3 12.1 19.0 2010 10 11 10 38.18 -50 30.8 4.392 3.877 53.2 11.9 19.1 2010 10 16 10 43.91 -50 46.6 4.427 3.913 53.3 11.8 19.2 2010 10 21 10 49.24 -51 04.0 4.458 3.949 53.6 11.7 19.2 2010 10 26 10 54.17 -51 22.8 4.485 3.986 54.2 11.7 19.3 2010 10 31 10 58.69 -51 42.9 4.508 4.022 55.0 11.7 19.3 2010 11 05 11 02.78 -52 04.1 4.528 4.059 56.1 11.7 19.4 2010 11 10 11 06.42 -52 26.3 4.543 4.095 57.4 11.8 19.4 2010 11 15 11 09.61 -52 49.1 4.554 4.132 59.0 11.8 19.5 2010 11 20 11 12.30 -53 12.5 4.562 4.169 60.8 11.9 19.5 2010 11 25 11 14.50 -53 36.2 4.566 4.206 62.8 12.0 19.5 2010 11 30 11 16.17 -53 59.9 4.566 4.243 65.0 12.2 19.6
