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 2010 Jan. 4.0 TT = JDT 2455200.5 T 2008 Sept. 13.6677 TT MPC q 5.556688 (2000.0) P Q n 0.0222349 Peri. 210.3846 -0.8154141 -0.5171377 a 12.525051 Node 296.2218 +0.5721217 -0.6514874 e 0.556354 Incl. 16.8563 +0.0881851 -0.5550971 P 44.3An 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! 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 18.8 2010 07 18 12 22.18 -20 25.2 6.719 6.596 78.7 8.7 18.8 2010 07 23 12 24.48 -20 28.3 6.806 6.610 74.7 8.5 18.9 2010 07 28 12 26.94 -20 32.9 6.891 6.623 70.6 8.3 18.9 2010 08 02 12 29.54 -20 38.8 6.974 6.637 66.6 8.1 18.9 2010 08 07 12 32.29 -20 46.2 7.055 6.651 62.7 7.8 19.0 2010 08 12 12 35.16 -20 54.9 7.133 6.664 58.8 7.5 19.0 2010 08 17 12 38.15 -21 04.8 7.209 6.678 54.9 7.1 19.0 2010 08 22 12 41.25 -21 16.0 7.281 6.692 51.1 6.8 19.1 2010 08 27 12 44.45 -21 28.3 7.350 6.706 47.3 6.4 19.1 2010 09 01 12 47.73 -21 41.6 7.416 6.720 43.5 5.9 19.1 2010 09 06 12 51.10 -21 56.0 7.477 6.734 39.8 5.5 19.2 2010 09 11 12 54.54 -22 11.3 7.535 6.748 36.1 5.0 19.2 2010 09 16 12 58.04 -22 27.5 7.587 6.762 32.6 4.6 19.2 2010 09 21 13 01.59 -22 44.6 7.636 6.776 29.1 4.1 19.2 2010 09 26 13 05.18 -23 02.3 7.679 6.790 25.8 3.7 19.2 2010 10 01 13 08.81 -23 20.8 7.718 6.804 22.6 3.2 19.3 2010 10 06 13 12.47 -23 39.9 7.751 6.819 19.8 2.8 19.3 2010 10 11 13 16.14 -23 59.6 7.779 6.833 17.4 2.5 19.3 2010 10 16 13 19.82 -24 19.7 7.802 6.847 15.6 2.2 19.3 2010 10 21 13 23.49 -24 40.3 7.819 6.861 14.8 2.1 19.3 2010 10 26 13 27.16 -25 01.3 7.832 6.876 15.0 2.1 19.3 2010 10 31 13 30.80 -25 22.6 7.838 6.890 16.2 2.3 19.4 2010 11 05 13 34.41 -25 44.2 7.839 6.905 18.3 2.6 19.4 2010 11 10 13 37.98 -26 06.0 7.835 6.919 21.0 2.9 19.4 2010 11 15 13 41.49 -26 27.9 7.825 6.934 24.1 3.3 19.4 2010 11 20 13 44.94 -26 49.9 7.810 6.949 27.5 3.8 19.4 2010 11 25 13 48.32 -27 12.0 7.790 6.963 31.0 4.2 19.4 2010 11 30 13 51.60 -27 34.0 7.765 6.978 34.8 4.6 19.4 2010 12 05 13 54.79 -27 55.9 7.735 6.993 38.6 5.0 19.4 2010 12 10 13 57.87 -28 17.8 7.701 7.007 42.6 5.5 19.4 2010 12 15 14 00.82 -28 39.4 7.662 7.022 46.6 5.8 19.4 2010 12 20 14 03.64 -29 00.8 7.618 7.037 50.7 6.2 19.4 2010 12 25 14 06.30 -29 21.8 7.571 7.052 54.9 6.6 19.4 2010 12 30 14 08.80 -29 42.5 7.521 7.067 59.1 6.9 19.4 2011 01 04 14 11.13 -30 02.8 7.467 7.082 63.4 7.1 19.4 2011 01 09 14 13.27 -30 22.5 7.411 7.097 67.7 7.4 19.4 2011 01 14 14 15.21 -30 41.7 7.352 7.112 72.1 7.6 19.4 2011 01 19 14 16.93 -31 00.2 7.291 7.127 76.6 7.7 19.3 2011 01 24 14 18.44 -31 17.9 7.229 7.142 81.0 7.8 19.3 2011 01 29 14 19.70 -31 34.9 7.165 7.157 85.6 7.9 19.3 2011 02 03 14 20.73 -31 50.9 7.102 7.172 90.1 7.9 19.3 2011 02 08 14 21.51 -32 06.0 7.038 7.187 94.7 7.9 19.3 2011 02 13 14 22.02 -32 19.9 6.975 7.202 99.4 7.8 19.3 2011 02 18 14 22.29 -32 32.7 6.913 7.217 104.1 7.6 19.3 2011 02 23 14 22.29 -32 44.2 6.853 7.233 108.8 7.4 19.3 2011 02 28 14 22.03 -32 54.3 6.796 7.248 113.5 7.2 19.3This 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.
