MPC
CBAT
ICQ
2P/Encke
Epoch 2010 July 23.0 TT = JDT 2455400.5
T 2010 Aug. 6.5019 TT MPC
q 0.335869 (2000.0) P Q
n 0.2990633 Peri. 186.5490 -0.9451432 -0.3146640
a 2.214593 Node 334.5669 +0.3082031 -0.7700543
e 0.848338 Incl. 11.7831 +0.1082371 -0.5549801
P 3.30
From 1601 observations 1993-2007, mean residual 0".6. Nongravitational
parameters A1 = -0.01, A2 = -0.0007.
Elements are also available for the current standard epoch:
2P/Encke Epoch 2008 Nov. 30.0 TT = JDT 2454800.5 T 2007 Apr. 19.3227 TT MPC q 0.338251 (2000.0) P Q n 0.2986229 Peri. 186.5010 -0.9448345 -0.3156060 a 2.216770 Node 334.5587 +0.3089593 -0.7698664 e 0.847413 Incl. 11.7715 +0.1087748 -0.5547059 P 3.30An 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! 2008 08 22 22 38.00 -08 16.7 2.998 4.001 171.2 2.2 22.1 2008 08 27 22 33.00 -08 42.0 2.999 4.009 177.3 0.7 22.0 2008 09 01 22 27.98 -09 07.2 3.009 4.017 176.5 0.9 22.1 2008 09 06 22 23.03 -09 31.8 3.027 4.024 170.4 2.4 22.2 2008 09 11 22 18.22 -09 55.4 3.053 4.032 164.3 3.9 22.3 2008 09 16 22 13.64 -10 17.5 3.087 4.038 158.2 5.3 22.4 2008 09 21 22 09.35 -10 38.0 3.129 4.045 152.3 6.6 22.5 2008 09 26 22 05.40 -10 56.4 3.178 4.051 146.3 7.9 22.6 2008 10 01 22 01.84 -11 12.7 3.233 4.056 140.5 9.0 22.7 2008 10 06 21 58.72 -11 26.7 3.295 4.062 134.8 10.1 22.8 2008 10 11 21 56.05 -11 38.3 3.361 4.066 129.2 11.0 22.9 2008 10 16 21 53.85 -11 47.4 3.433 4.071 123.7 11.8 22.9 2008 10 21 21 52.13 -11 54.2 3.508 4.075 118.3 12.4 23.0 2008 10 26 21 50.87 -11 58.6 3.587 4.079 113.0 13.0 23.1 2008 10 31 21 50.08 -12 00.8 3.668 4.082 107.8 13.4 23.2 2008 11 05 21 49.74 -12 00.6 3.751 4.085 102.7 13.7 23.2 2008 11 10 21 49.83 -11 58.4 3.835 4.088 97.7 13.9 23.3 2008 11 15 21 50.34 -11 54.1 3.920 4.090 92.8 14.0 23.3 2008 11 20 21 51.22 -11 47.8 4.005 4.092 88.0 14.0 23.4 2008 11 25 21 52.48 -11 39.7 4.089 4.093 83.3 13.9 23.4 2008 11 30 21 54.07 -11 29.7 4.172 4.094 78.7 13.7 23.4 2008 12 05 21 55.99 -11 18.1 4.253 4.095 74.1 13.4 23.5 2008 12 10 21 58.19 -11 04.9 4.333 4.095 69.6 13.0 23.5 2008 12 15 22 00.66 -10 50.1 4.409 4.095 65.2 12.6 23.5 2008 12 20 22 03.37 -10 33.9 4.483 4.095 60.8 12.1 23.5 2008 12 25 22 06.31 -10 16.4 4.554 4.094 56.5 11.6 23.6 2008 12 30 22 09.45 -09 57.5 4.620 4.093 52.3 11.0 23.6 2009 01 04 22 12.77 -09 37.5 4.683 4.091 48.0 10.3 23.6 2009 01 09 22 16.26 -09 16.3 4.741 4.089 43.9 9.6 23.6 2009 01 14 22 19.89 -08 54.0 4.794 4.087 39.8 8.9 23.6 2009 01 19 22 23.65 -08 30.8 4.843 4.085 35.7 8.1 23.5 2009 01 24 22 27.52 -08 06.6 4.887 4.082 31.6 7.3 23.5 2009 01 29 22 31.50 -07 41.6 4.925 4.078 27.6 6.4 23.5 2009 02 03 22 35.55 -07 15.8 4.958 4.074 23.7 5.6 23.5 2009 02 08 22 39.67 -06 49.3 4.985 4.070 19.7 4.7 23.4 2009 02 13 22 43.85 -06 22.2 5.007 4.066 15.8 3.8 23.4 2009 02 18 22 48.08 -05 54.5 5.023 4.061 11.9 2.9 23.3 2009 02 23 22 52.33 -05 26.2 5.033 4.055 8.1 2.0 23.3 2009 02 28 22 56.61 -04 57.6 5.037 4.050 4.4 1.1 23.2 2009 03 05 23 00.90 -04 28.6 5.035 4.044 1.7 0.4 23.1 2009 03 10 23 05.19 -03 59.3 5.027 4.037 4.0 1.0 23.2 2009 03 15 23 09.46 -03 29.7 5.014 4.030 7.6 1.9 23.3 2009 03 20 23 13.72 -03 00.1 4.995 4.023 11.3 2.8 23.3 2009 03 25 23 17.95 -02 30.3 4.970 4.016 15.1 3.7 23.3 2009 03 30 23 22.13 -02 00.5 4.940 4.008 18.9 4.6 23.4 2009 04 04 23 26.26 -01 30.8 4.904 3.999 22.7 5.5 23.4 2009 04 09 23 30.33 -01 01.2 4.862 3.991 26.4 6.4 23.4 2009 04 14 23 34.33 -00 31.8 4.816 3.981 30.2 7.3 23.4 2009 04 19 23 38.25 -00 02.6 4.764 3.972 34.0 8.1 23.5 2009 04 24 23 42.07 +00 26.2 4.708 3.962 37.8 9.0 23.5 2009 04 29 23 45.79 +00 54.5 4.647 3.952 41.6 9.7 23.5 2009 05 04 23 49.38 +01 22.4 4.582 3.941 45.5 10.5 23.5 2009 05 09 23 52.84 +01 49.6 4.512 3.930 49.3 11.2 23.4 2009 05 14 23 56.16 +02 16.2 4.439 3.918 53.2 11.9 23.4 2009 05 19 23 59.31 +02 42.0 4.361 3.906 57.2 12.6 23.4 2009 05 24 00 02.29 +03 07.0 4.281 3.894 61.1 13.2 23.4 2009 05 29 00 05.07 +03 31.0 4.197 3.881 65.1 13.7 23.3 2009 06 03 00 07.63 +03 53.9 4.111 3.868 69.2 14.2 23.3 2009 06 08 00 09.96 +04 15.7 4.022 3.854 73.3 14.6 23.3 2009 06 13 00 12.04 +04 36.2 3.931 3.840 77.4 15.0 23.2 2009 06 18 00 13.84 +04 55.2 3.839 3.826 81.7 15.2 23.2 23.2 2009 06 23 00 15.33 +05 12.7 3.745 3.811 86.0 15.4 23.1 23.1 2009 06 28 00 16.50 +05 28.5 3.651 3.796 90.4 15.5 23.0 23.1 2009 07 03 00 17.31 +05 42.4 3.556 3.780 94.8 15.5 22.9 23.0 2009 07 08 00 17.74 +05 54.3 3.461 3.764 99.4 15.5 22.8 22.9 2009 07 13 00 17.76 +06 03.9 3.367 3.747 104.1 15.3 22.7 22.8 2009 07 18 00 17.35 +06 11.2 3.275 3.730 108.9 14.9 22.7 22.8 2009 07 23 00 16.48 +06 15.9 3.184 3.713 113.8 14.5 22.6 22.7 2009 07 28 00 15.13 +06 17.8 3.096 3.695 118.9 13.9 22.5 22.6 2009 08 02 00 13.27 +06 16.7 3.011 3.676 124.1 13.2 22.4 22.5 2009 08 07 00 10.90 +06 12.5 2.929 3.658 129.4 12.4 22.3 22.4 2009 08 12 00 08.00 +06 05.1 2.852 3.638 134.8 11.4 22.2 22.3 2009 08 17 00 04.59 +05 54.2 2.780 3.619 140.4 10.3 22.1 22.2 2009 08 22 00 00.68 +05 39.8 2.714 3.598 146.2 9.0 22.0 22.1 2009 08 27 23 56.29 +05 22.0 2.654 3.578 152.0 7.6 21.9 21.9 2009 09 01 23 51.47 +05 00.9 2.601 3.557 157.9 6.1 21.8 2009 09 06 23 46.28 +04 36.7 2.556 3.535 163.8 4.6 21.7 2009 09 11 23 40.79 +04 09.7 2.518 3.513 169.4 3.0 21.5 2009 09 16 23 35.10 +03 40.2 2.489 3.490 173.6 1.8 21.4 2009 09 21 23 29.29 +03 08.9 2.468 3.467 172.9 2.0 21.4 2009 09 26 23 23.48 +02 36.4 2.456 3.443 168.1 3.4 21.5This 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.
