MPC
CBAT
ICQ
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 2008 May 14.0 TT = JDT 2454600.5 T 2007 Aug. 17.7191 TT MPC q 2.281109 (2000.0) P Q n 0.1402573 Peri. 202.6375 +0.9696077 +0.2132953 a 3.668757 Node 144.3715 -0.1808887 +0.9548117 e 0.378234 Incl. 11.8737 -0.1647427 +0.2069776 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.
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! 2008 04 14 03 13.95 +08 38.6 3.654 2.784 25.7 9.0 17.3 2008 04 19 03 22.10 +09 15.1 3.698 2.801 23.1 8.1 17.3 2008 04 24 03 30.27 +09 49.8 3.738 2.819 20.6 7.2 17.4 2008 04 29 03 38.44 +10 22.7 3.776 2.836 18.1 6.3 17.4 2008 05 04 03 46.61 +10 53.6 3.812 2.854 15.7 5.5 17.5 2008 05 09 03 54.78 +11 22.7 3.844 2.872 13.5 4.7 17.5 2008 05 14 04 02.93 +11 49.7 3.873 2.890 11.5 4.0 17.5 2008 05 19 04 11.05 +12 14.8 3.899 2.907 9.9 3.4 17.6 2008 05 24 04 19.14 +12 37.9 3.922 2.925 8.9 3.1 17.6 2008 05 29 04 27.19 +12 58.9 3.941 2.943 8.7 3.0 17.7 2008 06 03 04 35.20 +13 18.0 3.958 2.961 9.3 3.2 17.7 2008 06 08 04 43.15 +13 35.0 3.971 2.980 10.7 3.6 17.7 2008 06 13 04 51.04 +13 50.1 3.981 2.998 12.5 4.2 17.8 2008 06 18 04 58.85 +14 03.1 3.988 3.016 14.7 4.9 17.8 2008 06 23 05 06.57 +14 14.2 3.991 3.034 17.1 5.7 17.8 2008 06 28 05 14.21 +14 23.4 3.990 3.053 19.7 6.4 17.9 2008 07 03 05 21.74 +14 30.7 3.987 3.071 22.3 7.2 17.9 2008 07 08 05 29.16 +14 36.2 3.980 3.089 25.1 8.0 17.9 2008 07 13 05 36.45 +14 39.8 3.969 3.107 27.9 8.8 17.9 2008 07 18 05 43.61 +14 41.8 3.955 3.126 30.8 9.6 17.9 2008 07 23 05 50.62 +14 42.0 3.938 3.144 33.7 10.3 18.0 2008 07 28 05 57.47 +14 40.7 3.918 3.163 36.7 11.1 18.0 2008 08 02 06 04.16 +14 37.8 3.894 3.181 39.8 11.8 18.0 2008 08 07 06 10.66 +14 33.5 3.867 3.199 42.9 12.5 18.0 2008 08 12 06 16.96 +14 27.9 3.837 3.218 46.1 13.1 18.0 2008 08 17 06 23.05 +14 20.9 3.804 3.236 49.3 13.7 18.0 2008 08 22 06 28.92 +14 12.9 3.767 3.254 52.6 14.3 18.0 2008 08 27 06 34.54 +14 03.7 3.728 3.272 56.0 14.8 18.0 2008 09 01 06 39.91 +13 53.7 3.687 3.291 59.4 15.3 18.0 2008 09 06 06 45.00 +13 42.8 3.643 3.309 63.0 15.7 18.0 2008 09 11 06 49.79 +13 31.2 3.596 3.327 66.6 16.1 18.0 2008 09 16 06 54.28 +13 19.2 3.548 3.345 70.3 16.4 18.0 2008 09 21 06 58.43 +13 06.7 3.497 3.363 74.1 16.7 18.0 2008 09 26 07 02.24 +12 54.0 3.445 3.381 78.0 16.9 18.0 2008 10 01 07 05.67 +12 41.2 3.392 3.399 81.9 17.0 18.0 2008 10 06 07 08.70 +12 28.5 3.338 3.417 86.0 17.0 18.0 2008 10 11 07 11.32 +12 16.1 3.283 3.435 90.2 16.9 17.9 2008 10 16 07 13.51 +12 04.1 3.228 3.453 94.5 16.7 17.9 2008 10 21 07 15.24 +11 52.8 3.173 3.471 99.0 16.5 17.9 2008 10 26 07 16.49 +11 42.3 3.119 3.489 103.5 16.1 17.9 2008 10 31 07 17.25 +11 32.8 3.066 3.506 108.2 15.6 17.9 2008 11 05 07 17.51 +11 24.6 3.015 3.524 113.1 15.0 17.9 2008 11 10 07 17.25 +11 17.8 2.967 3.541 118.0 14.3 17.9 2008 11 15 07 16.48 +11 12.5 2.921 3.559 123.1 13.5 17.8 2008 11 20 07 15.21 +11 08.9 2.879 3.576 128.3 12.5 17.8 2008 11 25 07 13.44 +11 07.2 2.842 3.594 133.5 11.5 17.8 2008 11 30 07 11.19 +11 07.5 2.809 3.611 138.9 10.3 17.8 2008 12 05 07 08.51 +11 09.8 2.782 3.628 144.4 9.1 17.8 2008 12 10 07 05.45 +11 14.2 2.760 3.645 149.8 7.8 17.8 2008 12 15 07 02.06 +11 20.6 2.746 3.662 155.2 6.5 17.8 2008 12 20 06 58.41 +11 28.9 2.738 3.679 160.3 5.2 17.8 2008 12 25 06 54.58 +11 39.1 2.738 3.696 164.9 4.0 17.9 2008 12 30 06 50.65 +11 51.0 2.745 3.713 168.2 3.1 17.9 2009 01 04 06 46.71 +12 04.5 2.760 3.730 168.9 2.9 17.9 2009 01 09 06 42.86 +12 19.3 2.783 3.747 166.6 3.5 18.0 2009 01 14 06 39.17 +12 35.2 2.814 3.763 162.5 4.5 18.0 2009 01 19 06 35.71 +12 52.0 2.852 3.780 157.5 5.7 18.0 2009 01 24 06 32.56 +13 09.5 2.897 3.796 152.3 6.9 18.1 2009 01 29 06 29.77 +13 27.4 2.949 3.812 146.9 8.1 18.2 2009 02 03 06 27.39 +13 45.6 3.007 3.829 141.6 9.2 18.2 2009 02 08 06 25.46 +14 03.8 3.071 3.845 136.2 10.2 18.3 2009 02 13 06 23.99 +14 21.9 3.141 3.861 131.0 11.1 18.4 2009 02 18 06 22.99 +14 39.7 3.215 3.877 125.8 11.9 18.4 2009 02 23 06 22.47 +14 57.2 3.293 3.892 120.7 12.6 18.5 2009 02 28 06 22.42 +15 14.1 3.374 3.908 115.8 13.2 18.6 2009 03 05 06 22.84 +15 30.5 3.459 3.924 110.9 13.7 18.6 2009 03 10 06 23.70 +15 46.1 3.546 3.939 106.2 14.0 18.7 2009 03 15 06 24.98 +16 00.9 3.634 3.955 101.5 14.3 18.8 2009 03 20 06 26.67 +16 14.8 3.724 3.970 97.0 14.4 18.8 2009 03 25 06 28.74 +16 27.9 3.814 3.986 92.6 14.5 18.9 2009 03 30 06 31.16 +16 39.9 3.905 4.001 88.2 14.4 19.0 2009 04 04 06 33.92 +16 50.9 3.996 4.016 84.0 14.3 19.0 2009 04 09 06 36.98 +17 00.9 4.086 4.031 79.8 14.2 19.1 2009 04 14 06 40.32 +17 09.7 4.175 4.046 75.7 13.9 19.2 2009 04 19 06 43.92 +17 17.5 4.263 4.061 71.7 13.6 19.2 2009 04 24 06 47.76 +17 24.0 4.349 4.075 67.7 13.2 19.3 2009 04 29 06 51.81 +17 29.4 4.433 4.090 63.8 12.8 19.4 2009 05 04 06 56.07 +17 33.6 4.514 4.104 60.0 12.3 19.4 2009 05 09 07 00.49 +17 36.6 4.594 4.119 56.2 11.8 19.5 2009 05 14 07 05.07 +17 38.5 4.670 4.133 52.5 11.2 19.5 2009 05 19 07 09.79 +17 39.1 4.743 4.147 48.8 10.6 19.6This 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.
