C/2007 S2 (Lemmon)
Orbital Elements
The following orbital elements are taken from MPC 64767:C/2007 S2 (Lemmon) Epoch 2008 Sept. 11.0 TT = JDT 2454720.5 T 2008 Sept. 14.7484 TT MPC q 5.557986 (2000.0) P Q n 0.0221847 Peri. 210.4561 -0.8163403 -0.5156623 a 12.543932 Node 296.2521 +0.5709391 -0.6524052 e 0.556918 Incl. 16.8624 +0.0872758 -0.5553916 P 44.4 From 258 observations 2007 Sept. 25-2009 Jan. 7, mean residual 0".5.Elements are also available for the current standard epoch:
C/2007 S2 (Lemmon) Epoch 2009 June 18.0 TT = JDT 2455000.5 T 2008 Sept. 14.1896 TT MPC q 5.557603 (2000.0) P Q n 0.0222128 Peri. 210.4160 -0.8158721 -0.5164162 a 12.533342 Node 296.2403 +0.5715343 -0.6519346 e 0.556575 Incl. 16.8589 +0.0877571 -0.5552437 P 44.4An 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 10 24.11 -04 39.4 5.785 5.742 82.6 10.1 17.9 2009 06 13 10 26.36 -04 46.5 5.865 5.749 78.5 10.0 17.9 2009 06 18 10 28.79 -04 55.0 5.945 5.756 74.5 9.8 18.0 2009 06 23 10 31.40 -05 05.0 6.023 5.763 70.5 9.6 18.0 2009 06 28 10 34.17 -05 16.5 6.099 5.770 66.6 9.3 18.0 2009 07 03 10 37.09 -05 29.3 6.173 5.778 62.7 9.0 18.1 2009 07 08 10 40.14 -05 43.5 6.245 5.785 58.9 8.7 18.1 2009 07 13 10 43.32 -05 59.0 6.314 5.792 55.1 8.3 18.1 2009 07 18 10 46.62 -06 15.7 6.380 5.800 51.3 7.9 18.2 2009 07 23 10 50.02 -06 33.7 6.443 5.808 47.6 7.4 18.2 2009 07 28 10 53.51 -06 52.9 6.503 5.815 44.0 7.0 18.2 2009 08 02 10 57.09 -07 13.2 6.559 5.823 40.4 6.5 18.2 2009 08 07 11 00.73 -07 34.5 6.611 5.831 36.8 6.0 18.3 2009 08 12 11 04.45 -07 56.8 6.659 5.839 33.4 5.5 18.3 2009 08 17 11 08.21 -08 20.1 6.703 5.848 29.9 5.0 18.3 2009 08 22 11 12.03 -08 44.3 6.743 5.856 26.6 4.4 18.3 2009 08 27 11 15.88 -09 09.4 6.778 5.864 23.4 3.9 18.3 2009 09 01 11 19.75 -09 35.3 6.808 5.873 20.4 3.4 18.4 2009 09 06 11 23.65 -10 01.8 6.834 5.882 17.7 3.0 18.4 2009 09 11 11 27.55 -10 29.1 6.855 5.890 15.4 2.6 18.4 2009 09 16 11 31.46 -10 57.0 6.871 5.899 13.7 2.3 18.4 2009 09 21 11 35.36 -11 25.5 6.882 5.908 13.0 2.2 18.4 2009 09 26 11 39.25 -11 54.4 6.888 5.917 13.3 2.2 18.4 2009 10 01 11 43.11 -12 23.8 6.890 5.926 14.6 2.4 18.4 2009 10 06 11 46.94 -12 53.6 6.886 5.935 16.7 2.8 18.4 2009 10 11 11 50.73 -13 23.7 6.877 5.945 19.4 3.2 18.4 2009 10 16 11 54.46 -13 54.1 6.863 5.954 22.5 3.7 18.4 2009 10 21 11 58.13 -14 24.6 6.845 5.964 25.7 4.2 18.4 2009 10 26 12 01.73 -14 55.3 6.822 5.973 29.2 4.7 18.4 2009 10 31 12 05.25 -15 26.1 6.794 5.983 32.8 5.2 18.4 2009 11 05 12 08.67 -15 56.9 6.761 5.993 36.5 5.6 18.4 2009 11 10 12 11.99 -16 27.5 6.724 6.003 40.3 6.1 18.4 2009 11 15 12 15.19 -16 58.1 6.683 6.013 44.1 6.6 18.4 2009 11 20 12 18.27 -17 28.4 6.638 6.023 48.1 7.0 18.4 2009 11 25 12 21.20 -17 58.5 6.590 6.033 52.0 7.4 18.4 2009 11 30 12 23.99 -18 28.1 6.537 6.043 56.1 7.8 18.4 2009 12 05 12 26.60 -18 57.3 6.482 6.053 60.2 8.1 18.4 2009 12 10 12 29.04 -19 25.9 6.424 6.064 64.4 8.4 18.4 2009 12 15 12 31.29 -19 53.9 6.364 6.074 68.6 8.7 18.4 2009 12 20 12 33.33 -20 21.2 6.301 6.085 72.9 8.9 18.3 2009 12 25 12 35.16 -20 47.5 6.237 6.096 77.3 9.1 18.3 2009 12 30 12 36.76 -21 13.0 6.171 6.106 81.7 9.2 18.3 2010 01 04 12 38.12 -21 37.3 6.105 6.117 86.1 9.2 18.3 2010 01 09 12 39.23 -22 00.5 6.038 6.128 90.6 9.2 18.3 2010 01 14 12 40.08 -22 22.4 5.972 6.139 95.2 9.2 18.3 2010 01 19 12 40.67 -22 42.9 5.907 6.150 99.8 9.1 18.2 2010 01 24 12 40.99 -23 01.7 5.842 6.161 104.4 8.9 18.2 2010 01 29 12 41.05 -23 18.9 5.780 6.173 109.1 8.7 18.2 2010 02 03 12 40.83 -23 34.3 5.720 6.184 113.8 8.4 18.2 2010 02 08 12 40.35 -23 47.7 5.663 6.195 118.5 8.0 18.2 2010 02 13 12 39.61 -23 59.1 5.610 6.207 123.3 7.6 18.2 2010 02 18 12 38.63 -24 08.4 5.561 6.218 128.0 7.2 18.2 2010 02 23 12 37.42 -24 15.4 5.516 6.230 132.7 6.7 18.2 2010 02 28 12 36.00 -24 20.1 5.477 6.242 137.4 6.2 18.1 2010 03 05 12 34.40 -24 22.6 5.443 6.254 142.0 5.6 18.1 2010 03 10 12 32.64 -24 22.7 5.415 6.265 146.3 5.0 18.1 2010 03 15 12 30.76 -24 20.6 5.393 6.277 150.5 4.5 18.1 2010 03 20 12 28.79 -24 16.2 5.378 6.289 154.2 4.0 18.1 2010 03 25 12 26.76 -24 09.8 5.370 6.301 157.3 3.5 18.1 2010 03 30 12 24.72 -24 01.5 5.369 6.313 159.5 3.2 18.2 2010 04 04 12 22.70 -23 51.4 5.375 6.326 160.4 3.0 18.2 2010 04 09 12 20.74 -23 39.8 5.388 6.338 159.9 3.1 18.2 2010 04 14 12 18.86 -23 26.9 5.408 6.350 158.2 3.4 18.2 2010 04 19 12 17.10 -23 13.0 5.436 6.363 155.4 3.8 18.2 2010 04 24 12 15.50 -22 58.4 5.470 6.375 152.0 4.3 18.2 2010 04 29 12 14.07 -22 43.3 5.511 6.388 148.1 4.8 18.3 2010 05 04 12 12.83 -22 28.0 5.558 6.400 143.9 5.3 18.3 2010 05 09 12 11.81 -22 12.7 5.611 6.413 139.6 5.9 18.3 2010 05 14 12 11.02 -21 57.8 5.669 6.426 135.2 6.4 18.3 2010 05 19 12 10.47 -21 43.4 5.733 6.438 130.7 6.8 18.4 2010 05 24 12 10.16 -21 29.8 5.801 6.451 126.2 7.3 18.4 2010 05 29 12 10.10 -21 17.1 5.873 6.464 121.7 7.7 18.4 2010 06 03 12 10.28 -21 05.6 5.950 6.477 117.3 8.0 18.5 2010 06 08 12 10.71 -20 55.2 6.029 6.490 112.8 8.3 18.5 2010 06 13 12 11.38 -20 46.2 6.111 6.503 108.4 8.5 18.6 2010 06 18 12 12.28 -20 38.6 6.195 6.516 104.0 8.7 18.6 2010 06 23 12 13.42 -20 32.6 6.281 6.529 99.7 8.8 18.6 2010 06 28 12 14.77 -20 28.0 6.368 6.543 95.4 8.9 18.7 2010 07 03 12 16.33 -20 25.0 6.456 6.556 91.2 8.9 18.7 2010 07 08 12 18.09 -20 23.5 6.544 6.569 87.0 8.9 18.8 2010 07 13 12 20.04 -20 23.6 6.632 6.583 82.8 8.8 18.8This 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.
