C/2006 HW51 (Siding Spring) Epoch 2006 Sept. 22.0 TT = JDT 2454000.5 T 2006 Sept. 29.3093 TT MPC q 2.265649 (2000.0) P Q z -0.001014 Peri. 359.9597 -0.6678374 +0.5185743 +/-0.000005 Node 228.1277 -0.6826877 -0.7125638 e 1.002298 Incl. 45.8096 -0.2965311 +0.4725817 From 173 observations 2006 Apr. 23-2007 May 17, mean residual 0".4.Elements are also available for the current standard epoch:
C/2006 HW51 (Siding Spring) Epoch 2007 Apr. 10.0 TT = JDT 2454200.5 T 2006 Sept. 29.2430 TT MPC q 2.265426 (2000.0) P Q z -0.000874 Peri. 359.9373 -0.6680811 +0.5183151 +/-0.000005 Node 228.1246 -0.6823753 -0.7128651 e 1.001981 Incl. 45.8066 -0.2967012 +0.4724116An 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 m2 2007 05 30 20 09.14 +31 53.9 3.097 3.488 104.3 16.4 18.9 2007 06 04 20 07.89 +32 55.0 3.099 3.527 106.7 16.0 18.9 2007 06 09 20 06.16 +33 50.8 3.104 3.566 109.0 15.6 19.0 2007 06 14 20 04.00 +34 41.1 3.111 3.605 111.2 15.2 19.0 2007 06 19 20 01.44 +35 25.2 3.121 3.644 113.2 14.8 19.1 2007 06 24 19 58.53 +36 02.9 3.135 3.683 115.1 14.5 19.1 2007 06 29 19 55.35 +36 33.7 3.151 3.723 116.8 14.1 19.2 2007 07 04 19 51.95 +36 57.7 3.171 3.762 118.4 13.8 19.3 2007 07 09 19 48.41 +37 14.5 3.195 3.802 119.7 13.4 19.3 2007 07 14 19 44.81 +37 24.3 3.222 3.842 120.7 13.1 19.4 2007 07 19 19 41.23 +37 27.2 3.252 3.882 121.5 12.9 19.5 2007 07 24 19 37.75 +37 23.3 3.287 3.921 122.1 12.7 19.5 2007 07 29 19 34.44 +37 13.0 3.325 3.961 122.3 12.5 19.6 2007 08 03 19 31.37 +36 56.9 3.367 4.001 122.3 12.4 19.7 2007 08 08 19 28.59 +36 35.3 3.413 4.042 121.9 12.3 19.7 2007 08 13 19 26.15 +36 08.9 3.462 4.082 121.3 12.2 19.8 2007 08 18 19 24.10 +35 38.3 3.516 4.122 120.4 12.2 19.9 2007 08 23 19 22.45 +35 04.0 3.573 4.162 119.3 12.2 20.0 2007 08 28 19 21.23 +34 26.9 3.634 4.203 117.9 12.3 20.0 2007 09 02 19 20.44 +33 47.5 3.698 4.243 116.3 12.3 20.1 2007 09 07 19 20.09 +33 06.4 3.765 4.283 114.6 12.4 20.2 2007 09 12 19 20.17 +32 24.1 3.836 4.324 112.6 12.4 20.3 2007 09 17 19 20.68 +31 41.3 3.910 4.364 110.5 12.5 20.4 2007 09 22 19 21.59 +30 58.4 3.986 4.405 108.2 12.5 20.4 2007 09 27 19 22.90 +30 15.9 4.066 4.445 105.8 12.5 20.5 2007 10 02 19 24.58 +29 34.2 4.147 4.485 103.4 12.5 20.6 2007 10 07 19 26.60 +28 53.6 4.231 4.526 100.8 12.5 20.7 2007 10 12 19 28.96 +28 14.5 4.316 4.566 98.2 12.5 20.8 2007 10 17 19 31.62 +27 37.1 4.404 4.607 95.5 12.4 20.9 2007 10 22 19 34.57 +27 01.7 4.492 4.647 92.7 12.4 20.9 2007 10 27 19 37.78 +26 28.5 4.582 4.688 89.9 12.2 21.0 2007 11 01 19 41.23 +25 57.6 4.673 4.728 87.1 12.1 21.1 2007 11 06 19 44.90 +25 29.1 4.764 4.769 84.3 11.9 21.2 2007 11 11 19 48.76 +25 03.2 4.855 4.809 81.5 11.7 21.3 2007 11 16 19 52.80 +24 39.9 4.947 4.849 78.6 11.5 21.3 2007 11 21 19 57.01 +24 19.4 5.038 4.890 75.8 11.3 21.4 2007 11 26 20 01.35 +24 01.5 5.128 4.930 72.9 11.0 21.5 2007 12 01 20 05.81 +23 46.3 5.218 4.970 70.1 10.8 21.6 2007 12 06 20 10.37 +23 33.9 5.307 5.011 67.4 10.5 21.6 2007 12 11 20 15.03 +23 24.2 5.394 5.051 64.6 10.1 21.7 2007 12 16 20 19.76 +23 17.2 5.480 5.091 61.9 9.8 21.8 2007 12 21 20 24.55 +23 12.8 5.564 5.131 59.3 9.5 21.8 2007 12 26 20 29.38 +23 11.1 5.645 5.171 56.7 9.1 21.9 2007 12 31 20 34.24 +23 11.8 5.725 5.212 54.2 8.8 22.0 2008 01 05 20 39.12 +23 15.1 5.802 5.252 51.9 8.5 22.0 2008 01 10 20 44.00 +23 20.7 5.876 5.292 49.6 8.1 22.1 2008 01 15 20 48.88 +23 28.7 5.947 5.332 47.5 7.8 22.1 2008 01 20 20 53.73 +23 39.0 6.015 5.372 45.5 7.5 22.2 2008 01 25 20 58.56 +23 51.4 6.080 5.412 43.8 7.2 22.3 2008 01 30 21 03.34 +24 05.8 6.141 5.452 42.2 7.0 22.3 2008 02 04 21 08.07 +24 22.3 6.199 5.491 40.9 6.7 22.4 2008 02 09 21 12.74 +24 40.6 6.253 5.531 39.8 6.6 22.4 2008 02 14 21 17.33 +25 00.8 6.303 5.571 39.0 6.4 22.5 2008 02 19 21 21.85 +25 22.6 6.349 5.611 38.6 6.3 22.5 2008 02 24 21 26.27 +25 46.0 6.392 5.650 38.4 6.2 22.5 2008 02 29 21 30.59 +26 10.9 6.431 5.690 38.6 6.2 22.6 2008 03 05 21 34.79 +26 37.3 6.465 5.730 39.1 6.3 22.6 2008 03 10 21 38.88 +27 04.9 6.496 5.769 39.9 6.3 22.7 2008 03 15 21 42.84 +27 33.7 6.523 5.809 41.0 6.4 22.7 2008 03 20 21 46.66 +28 03.6 6.545 5.848 42.4 6.6 22.7 2008 03 25 21 50.32 +28 34.4 6.564 5.888 44.0 6.8 22.8 2008 03 30 21 53.83 +29 06.1 6.579 5.927 45.8 6.9 22.8 2008 04 04 21 57.18 +29 38.6 6.591 5.966 47.9 7.1 22.9 2008 04 09 22 00.34 +30 11.7 6.599 6.005 50.1 7.3 22.9 2008 04 14 22 03.32 +30 45.3 6.603 6.045 52.5 7.6 22.9 2008 04 19 22 06.10 +31 19.3 6.604 6.084 55.0 7.8 22.9 2008 04 24 22 08.67 +31 53.5 6.603 6.123 57.6 8.0 23.0 2008 04 29 22 11.02 +32 27.9 6.598 6.162 60.3 8.2 23.0 2008 05 04 22 13.15 +33 02.2 6.590 6.201 63.2 8.3 23.0 2008 05 09 22 15.04 +33 36.4 6.580 6.240 66.1 8.5 23.0 2008 05 14 22 16.68 +34 10.3 6.568 6.279 69.1 8.6 23.1 2008 05 19 22 18.07 +34 43.7 6.554 6.318 72.1 8.8 23.1 2008 05 24 22 19.20 +35 16.4 6.539 6.356 75.2 8.9 23.1 2008 05 29 22 20.06 +35 48.4 6.521 6.395 78.4 8.9 23.1 2008 06 03 22 20.65 +36 19.3 6.503 6.434 81.6 9.0 23.2 2008 06 08 22 20.95 +36 49.0 6.484 6.472 84.8 9.0 23.2 2008 06 13 22 20.97 +37 17.3 6.465 6.511 88.1 9.0 23.2 2008 06 18 22 20.71 +37 43.9 6.446 6.550 91.4 8.9 23.2 2008 06 23 22 20.17 +38 08.7 6.427 6.588 94.6 8.8 23.2 2008 06 28 22 19.35 +38 31.5 6.409 6.626 97.9 8.7 23.2 2008 07 03 22 18.27 +38 52.1 6.392 6.665 101.2 8.6 23.3