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 2009 June 18.0 TT = JDT 2455000.5 T 2007 Aug. 17.9496 TT MPC q 2.281534 (2000.0) P Q n 0.1401573 Peri. 202.6987 +0.9698046 +0.2123788 a 3.670504 Node 144.3642 -0.1799798 +0.9549845 e 0.378414 Incl. 11.8750 -0.1645789 +0.2071229 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 06 08 07 29.74 +17 30.0 5.001 4.203 34.4 7.8 19.7 2009 06 13 07 34.93 +17 24.9 5.055 4.216 30.9 7.1 19.8 2009 06 18 07 40.16 +17 18.8 5.106 4.230 27.4 6.3 19.8 2009 06 23 07 45.44 +17 11.5 5.152 4.243 23.9 5.6 19.8 2009 06 28 07 50.74 +17 03.3 5.194 4.257 20.5 4.8 19.9 2009 07 03 07 56.06 +16 54.1 5.232 4.270 17.0 4.0 19.9 2009 07 08 08 01.39 +16 43.9 5.264 4.283 13.7 3.2 19.9 2009 07 13 08 06.71 +16 32.9 5.292 4.296 10.3 2.4 19.9 2009 07 18 08 12.02 +16 21.1 5.316 4.309 7.1 1.7 20.0 2009 07 23 08 17.30 +16 08.4 5.334 4.322 4.4 1.0 20.0 2009 07 28 08 22.56 +15 55.0 5.348 4.335 3.5 0.8 20.0 2009 08 02 08 27.77 +15 41.0 5.356 4.347 5.4 1.3 20.0 2009 08 07 08 32.93 +15 26.4 5.360 4.360 8.5 2.0 20.0 2009 08 12 08 38.02 +15 11.2 5.359 4.372 11.8 2.7 20.1 2009 08 17 08 43.05 +14 55.6 5.353 4.384 15.2 3.5 20.1 2009 08 22 08 48.00 +14 39.6 5.342 4.396 18.7 4.2 20.1 2009 08 27 08 52.86 +14 23.3 5.326 4.408 22.3 5.0 20.1 2009 09 01 08 57.62 +14 06.8 5.306 4.420 25.9 5.7 20.1 2009 09 06 09 02.27 +13 50.1 5.281 4.432 29.6 6.4 20.1 2009 09 11 09 06.81 +13 33.4 5.251 4.444 33.3 7.1 20.1 2009 09 16 09 11.21 +13 16.8 5.217 4.455 37.0 7.8 20.1 2009 09 21 09 15.48 +13 00.3 5.178 4.467 40.8 8.4 20.1 2009 09 26 09 19.59 +12 44.1 5.136 4.478 44.7 9.1 20.1 2009 10 01 09 23.53 +12 28.3 5.089 4.490 48.6 9.6 20.1 2009 10 06 09 27.30 +12 12.9 5.039 4.501 52.5 10.2 20.0 2009 10 11 09 30.88 +11 58.2 4.985 4.512 56.5 10.6 20.0 2009 10 16 09 34.26 +11 44.2 4.928 4.523 60.6 11.1 20.0 2009 10 21 09 37.42 +11 31.1 4.868 4.534 64.8 11.5 20.0 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 20.7This 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.
