MPC
CBAT
ICQ
P/2006 W4 (Hill) Epoch 2009 Jan. 9.0 TT = JDT 2454840.5 T 2009 Jan. 20.2041 TT MPC q 4.435204 (2000.0) P Q n 0.0596675 Peri. 249.6123 -0.5173200 -0.6724188 a 6.486005 Node 243.2513 +0.8181790 -0.5699776 e 0.316189 Incl. 36.3565 -0.2509245 -0.4722060 P 16.5 From 82 observations 2006 Nov. 19-2007 Jan. 20, mean residual 0".6.Elements are also available for the current standard epoch:
P/2006 W4 (Hill) Epoch 2007 Apr. 10.0 TT = JDT 2454200.5 T 2009 Jan. 20.7073 TT MPC q 4.434017 (2000.0) P Q n 0.0596407 Peri. 249.6776 -0.5181579 -0.6716398 a 6.487951 Node 243.2643 +0.8174321 -0.5710451 e 0.316577 Incl. 36.3651 -0.2516290 -0.4720248 P 16.5An 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! 2007 05 30 04 21.65 +19 25.0 6.173 5.160 2.4 0.5 19.6 2007 06 04 04 26.36 +19 22.5 6.159 5.150 5.5 1.1 19.6 2007 06 09 04 31.08 +19 19.2 6.140 5.140 9.0 1.8 19.6 2007 06 14 04 35.78 +19 15.2 6.116 5.130 12.6 2.5 19.5 2007 06 19 04 40.47 +19 10.5 6.087 5.120 16.3 3.2 19.5 2007 06 24 04 45.12 +19 04.8 6.053 5.109 20.0 3.9 19.5 2007 06 29 04 49.72 +18 58.3 6.014 5.099 23.7 4.6 19.5 2007 07 04 04 54.27 +18 50.8 5.971 5.089 27.4 5.3 19.4 2007 07 09 04 58.76 +18 42.4 5.923 5.079 31.1 5.9 19.4 2007 07 14 05 03.17 +18 33.0 5.871 5.070 34.8 6.6 19.4 2007 07 19 05 07.49 +18 22.5 5.814 5.060 38.6 7.2 19.4 2007 07 24 05 11.70 +18 10.9 5.754 5.050 42.4 7.8 19.3 2007 07 29 05 15.79 +17 58.3 5.689 5.040 46.2 8.4 19.3 2007 08 03 05 19.75 +17 44.5 5.622 5.030 50.0 8.9 19.3 2007 08 08 05 23.57 +17 29.6 5.550 5.021 53.9 9.4 19.2 2007 08 13 05 27.23 +17 13.6 5.476 5.011 57.9 9.9 19.2 2007 08 18 05 30.72 +16 56.4 5.399 5.001 61.8 10.3 19.2 2007 08 23 05 34.01 +16 38.0 5.320 4.992 65.9 10.7 19.1 2007 08 28 05 37.09 +16 18.4 5.238 4.982 69.9 11.0 19.1 2007 09 02 05 39.96 +15 57.7 5.155 4.973 74.1 11.3 19.0 2007 09 07 05 42.58 +15 35.8 5.070 4.964 78.2 11.5 19.0 2007 09 12 05 44.95 +15 12.8 4.984 4.954 82.5 11.6 18.9 2007 09 17 05 47.04 +14 48.6 4.897 4.945 86.8 11.7 18.9 2007 09 22 05 48.85 +14 23.4 4.811 4.936 91.2 11.7 18.8 2007 09 27 05 50.35 +13 57.1 4.725 4.927 95.7 11.7 18.8 2007 10 02 05 51.53 +13 29.8 4.640 4.917 100.3 11.6 18.7 2007 10 07 05 52.38 +13 01.6 4.556 4.908 104.9 11.4 18.7 2007 10 12 05 52.89 +12 32.5 4.474 4.899 109.6 11.1 18.7 2007 10 17 05 53.04 +12 02.6 4.394 4.890 114.3 10.7 18.6 2007 10 22 05 52.83 +11 32.1 4.318 4.882 119.2 10.3 18.6 2007 10 27 05 52.27 +11 01.1 4.246 4.873 124.1 9.7 18.5 2007 11 01 05 51.35 +10 29.7 4.177 4.864 129.0 9.1 18.5 2007 11 06 05 50.08 +09 58.1 4.114 4.855 134.0 8.4 18.4 2007 11 11 05 48.47 +09 26.5 4.056 4.847 139.0 7.7 18.4 2007 11 16 05 46.55 +08 55.1 4.004 4.838 143.9 6.9 18.4 2007 11 21 05 44.35 +08 24.2 3.958 4.830 148.7 6.1 18.3 2007 11 26 05 41.90 +07 54.0 3.919 4.821 153.2 5.3 18.3 2007 12 01 05 39.24 +07 24.7 3.888 4.813 157.3 4.5 18.3 2007 12 06 05 36.41 +06 56.6 3.864 4.805 160.6 3.9 18.3 2007 12 11 05 33.47 +06 30.0 3.848 4.796 162.6 3.5 18.2 2007 12 16 05 30.47 +06 05.1 3.839 4.788 162.8 3.5 18.2 2007 12 21 05 27.47 +05 42.1 3.838 4.780 161.2 3.8 18.2 2007 12 26 05 24.54 +05 21.1 3.846 4.772 158.1 4.4 18.2 2007 12 31 05 21.71 +05 02.3 3.860 4.764 154.1 5.2 18.2 2008 01 05 05 19.04 +04 45.7 3.882 4.756 149.6 6.0 18.2 2008 01 10 05 16.59 +04 31.4 3.910 4.748 144.9 6.8 18.2 2008 01 15 05 14.39 +04 19.4 3.945 4.741 140.0 7.7 18.2 2008 01 20 05 12.49 +04 09.6 3.986 4.733 135.0 8.5 18.3 2008 01 25 05 10.90 +04 01.9 4.032 4.726 130.0 9.2 18.3 2008 01 30 05 09.65 +03 56.1 4.083 4.718 125.0 9.8 18.3 2008 02 04 05 08.76 +03 52.2 4.138 4.711 120.1 10.4 18.3 2008 02 09 05 08.23 +03 50.0 4.197 4.703 115.3 10.9 18.3 2008 02 14 05 08.07 +03 49.2 4.258 4.696 110.5 11.4 18.4 2008 02 19 05 08.29 +03 49.7 4.322 4.689 105.8 11.7 18.4 2008 02 24 05 08.87 +03 51.3 4.388 4.682 101.2 12.0 18.4 2008 02 29 05 09.80 +03 53.7 4.455 4.675 96.7 12.1 18.4 2008 03 05 05 11.08 +03 56.7 4.522 4.668 92.3 12.3 18.5 2008 03 10 05 12.69 +04 00.3 4.590 4.661 88.0 12.3 18.5 2008 03 15 05 14.62 +04 04.1 4.657 4.654 83.7 12.3 18.5 2008 03 20 05 16.86 +04 08.1 4.724 4.648 79.6 12.2 18.5 2008 03 25 05 19.38 +04 12.0 4.789 4.641 75.5 12.0 18.6 2008 03 30 05 22.17 +04 15.7 4.853 4.635 71.6 11.8 18.6 2008 04 04 05 25.21 +04 19.0 4.915 4.628 67.7 11.5 18.6 2008 04 09 05 28.50 +04 21.9 4.974 4.622 63.9 11.2 18.6 2008 04 14 05 32.00 +04 24.1 5.032 4.616 60.2 10.9 18.7 2008 04 19 05 35.71 +04 25.6 5.086 4.610 56.6 10.5 18.7 2008 04 24 05 39.61 +04 26.2 5.138 4.604 53.1 10.1 18.7 2008 04 29 05 43.69 +04 25.9 5.186 4.598 49.6 9.6 18.7 2008 05 04 05 47.92 +04 24.6 5.231 4.592 46.3 9.1 18.7 2008 05 09 05 52.31 +04 22.2 5.272 4.586 43.0 8.6 18.7 2008 05 14 05 56.82 +04 18.6 5.310 4.581 39.9 8.1 18.7 2008 05 19 06 01.46 +04 13.7 5.344 4.575 36.9 7.6 18.7 2008 05 24 06 06.19 +04 07.4 5.374 4.570 34.0 7.1 18.8 2008 05 29 06 11.02 +03 59.9 5.400 4.564 31.3 6.6 18.8 2008 06 03 06 15.94 +03 50.8 5.422 4.559 28.8 6.1 18.8 2008 06 08 06 20.92 +03 40.3 5.440 4.554 26.5 5.7 18.8 2008 06 13 06 25.96 +03 28.2 5.454 4.549 24.5 5.3 18.8 2008 06 18 06 31.05 +03 14.6 5.463 4.544 22.8 5.0 18.8 2008 06 23 06 36.17 +02 59.4 5.469 4.539 21.6 4.7 18.8 2008 06 28 06 41.32 +02 42.6 5.470 4.534 20.8 4.6 18.8 2008 07 03 06 46.48 +02 24.1 5.467 4.530 20.6 4.5 18.7This 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.