P/2007 H1 (McNaught)
Orbital Elements
The following orbital elements are taken from MPC 62270:P/2007 H1 (McNaught) Epoch 2007 Aug. 8.0 TT = JDT 2454320.5 T 2007 Aug. 17.6392 TT MPC q 2.281008 (2000.0) P Q n 0.1403199 Peri. 202.6091 +0.9695199 +0.2136998 a 3.667666 Node 144.3759 -0.1812914 +0.9547383 e 0.378076 Incl. 11.8740 -0.1648167 +0.2068988 P 7.02 From 1073 observations 2006 Apr. 25-2008 Feb. 8, mean residual 0".6.Elements are also available for the current standard epoch:
P/2007 H1 (McNaught) Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 T 2007 Aug. 18.1020 TT MPC q 2.282143 (2000.0) P Q n 0.1401093 Peri. 202.7364 +0.9699450 +0.2117379 a 3.671340 Node 144.3643 -0.1793487 +0.9551027 e 0.378390 Incl. 11.8749 -0.1644406 +0.2072340 P 7.03An 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 m2WARNING! 2009 10 26 09 40.34 +11 18.9 4.805 4.544 69.0 11.8 20.0 2009 10 31 09 43.01 +11 07.9 4.740 4.555 73.3 12.1 20.0 2009 11 05 09 45.42 +10 58.2 4.673 4.565 77.7 12.3 19.9 2009 11 10 09 47.55 +10 49.9 4.604 4.576 82.2 12.4 19.9 2009 11 15 09 49.38 +10 43.1 4.535 4.586 86.7 12.4 19.9 2009 11 20 09 50.90 +10 37.9 4.465 4.596 91.4 12.4 19.9 2009 11 25 09 52.10 +10 34.6 4.395 4.606 96.1 12.3 19.8 2009 11 30 09 52.95 +10 33.2 4.326 4.616 101.0 12.1 19.8 2009 12 05 09 53.45 +10 33.7 4.257 4.626 105.9 11.8 19.8 2009 12 10 09 53.59 +10 36.4 4.191 4.636 111.0 11.4 19.8 2009 12 15 09 53.37 +10 41.2 4.127 4.646 116.2 11.0 19.7 2009 12 20 09 52.77 +10 48.2 4.066 4.655 121.4 10.4 19.7 2009 12 25 09 51.80 +10 57.4 4.008 4.664 126.8 9.7 19.7 2009 12 30 09 50.47 +11 08.7 3.956 4.674 132.3 9.0 19.7 2010 01 04 09 48.79 +11 22.1 3.908 4.683 137.8 8.1 19.7 2010 01 09 09 46.78 +11 37.4 3.865 4.692 143.4 7.2 19.6 2010 01 14 09 44.47 +11 54.4 3.829 4.701 149.2 6.2 19.6 2010 01 19 09 41.89 +12 13.0 3.800 4.710 155.0 5.1 19.6 2010 01 24 09 39.09 +12 32.8 3.778 4.719 160.8 3.9 19.6 2010 01 29 09 36.11 +12 53.6 3.763 4.727 166.7 2.8 19.6 2010 02 03 09 33.01 +13 15.0 3.757 4.736 172.5 1.6 19.6 2010 02 08 09 29.84 +13 36.8 3.758 4.744 178.2 0.4 19.6 2010 02 13 09 26.65 +13 58.5 3.768 4.752 175.4 0.9 19.6 2010 02 18 09 23.52 +14 19.8 3.785 4.761 169.6 2.1 19.7 2010 02 23 09 20.50 +14 40.5 3.811 4.769 163.8 3.3 19.7 2010 02 28 09 17.64 +15 00.3 3.844 4.777 158.0 4.4 19.7 2010 03 05 09 14.98 +15 18.9 3.884 4.785 152.3 5.5 19.7 2010 03 10 09 12.58 +15 36.1 3.931 4.792 146.7 6.5 19.8 2010 03 15 09 10.47 +15 51.8 3.985 4.800 141.1 7.5 19.8 2010 03 20 09 08.68 +16 05.9 4.045 4.807 135.7 8.3 19.9 2010 03 25 09 07.22 +16 18.2 4.109 4.815 130.3 9.1 19.9 2010 03 30 09 06.12 +16 28.8 4.179 4.822 125.1 9.8 19.9 2010 04 04 09 05.37 +16 37.7 4.252 4.829 119.9 10.3 20.0 2010 04 09 09 04.99 +16 44.7 4.329 4.836 114.9 10.8 20.0 2010 04 14 09 04.96 +16 50.1 4.409 4.843 109.9 11.2 20.1 2010 04 19 09 05.29 +16 53.7 4.491 4.850 105.1 11.5 20.1 2010 04 24 09 05.95 +16 55.7 4.574 4.857 100.4 11.8 20.2 2010 04 29 09 06.95 +16 56.1 4.659 4.864 95.7 11.9 20.2 2010 05 04 09 08.25 +16 54.9 4.744 4.870 91.2 11.9 20.3 2010 05 09 09 09.85 +16 52.2 4.829 4.877 86.7 11.9 20.3 2010 05 14 09 11.73 +16 48.1 4.914 4.883 82.3 11.8 20.3 2010 05 19 09 13.87 +16 42.6 4.998 4.889 78.0 11.7 20.4 2010 05 24 09 16.25 +16 35.8 5.080 4.895 73.8 11.5 20.4 2010 05 29 09 18.85 +16 27.8 5.161 4.901 69.6 11.2 20.5 2010 06 03 09 21.67 +16 18.6 5.240 4.907 65.5 10.8 20.5 2010 06 08 09 24.67 +16 08.2 5.316 4.913 61.5 10.5 20.5 2010 06 13 09 27.85 +15 56.7 5.389 4.918 57.5 10.0 20.6 2010 06 18 09 31.19 +15 44.2 5.460 4.924 53.5 9.6 20.6 2010 06 23 09 34.68 +15 30.8 5.526 4.929 49.6 9.0 20.6 2010 06 28 09 38.29 +15 16.4 5.590 4.935 45.8 8.5 20.7 2010 07 03 09 42.02 +15 01.2 5.649 4.940 41.9 7.9 20.7 2010 07 08 09 45.85 +14 45.2 5.705 4.945 38.1 7.3 20.7 2010 07 13 09 49.78 +14 28.4 5.756 4.950 34.4 6.7 20.7 2010 07 18 09 53.78 +14 11.0 5.803 4.955 30.6 6.0 20.8 2010 07 23 09 57.86 +13 52.9 5.845 4.960 26.9 5.3 20.8 2010 07 28 10 01.99 +13 34.2 5.882 4.964 23.2 4.6 20.8 2010 08 02 10 06.16 +13 15.1 5.914 4.969 19.5 3.9 20.8 2010 08 07 10 10.37 +12 55.5 5.942 4.973 15.8 3.2 20.8 2010 08 12 10 14.62 +12 35.5 5.964 4.978 12.1 2.4 20.8 2010 08 17 10 18.88 +12 15.1 5.981 4.982 8.4 1.7 20.9 2010 08 22 10 23.14 +11 54.6 5.993 4.986 4.9 1.0 20.9 2010 08 27 10 27.41 +11 33.9 6.000 4.990 1.9 0.4 20.9 2010 09 01 10 31.67 +11 13.0 6.001 4.994 3.4 0.7 20.9 2010 09 06 10 35.91 +10 52.1 5.997 4.998 6.9 1.4 20.9 2010 09 11 10 40.12 +10 31.2 5.988 5.001 10.6 2.1 20.9 2010 09 16 10 44.30 +10 10.5 5.973 5.005 14.3 2.9 20.9 2010 09 21 10 48.43 +09 50.0 5.953 5.008 18.1 3.6 20.9 2010 09 26 10 52.50 +09 29.8 5.928 5.012 21.9 4.3 20.9 2010 10 01 10 56.51 +09 09.9 5.898 5.015 25.8 5.0 20.9 2010 10 06 11 00.45 +08 50.5 5.862 5.018 29.7 5.7 20.8 2010 10 11 11 04.30 +08 31.6 5.822 5.021 33.6 6.3 20.8 2010 10 16 11 08.06 +08 13.4 5.777 5.024 37.6 7.0 20.8 2010 10 21 11 11.71 +07 56.0 5.728 5.027 41.6 7.6 20.8 2010 10 26 11 15.23 +07 39.4 5.674 5.030 45.7 8.1 20.8 2010 10 31 11 18.63 +07 23.8 5.616 5.032 49.8 8.7 20.8 2010 11 05 11 21.89 +07 09.3 5.554 5.035 53.9 9.2 20.7 2010 11 10 11 24.98 +06 56.0 5.489 5.037 58.1 9.6 20.7 2010 11 15 11 27.91 +06 43.9 5.420 5.039 62.4 10.0 20.7 2010 11 20 11 30.64 +06 33.3 5.349 5.041 66.8 10.4 20.7 2010 11 25 11 33.18 +06 24.2 5.275 5.043 71.2 10.7 20.6 2010 11 30 11 35.50 +06 16.8 5.199 5.045 75.6 10.9 20.6This comet gets close to the sun during the period covered in the ephemeris below. Observers are warned to be wary of observing comets near the sun. NEVER point any kind of optical instrument at the sun--instant blindness will be the probable result.
