2P/Encke
Orbital Elements
The following orbital elements are taken from MPC 59600:
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 2010 Jan. 4.0 TT = JDT 2455200.5 T 2010 Aug. 6.5103 TT MPC q 0.336152 (2000.0) P Q n 0.2989028 Peri. 186.5242 -0.9450348 -0.3149913 a 2.215386 Node 334.5718 +0.3084629 -0.7699343 e 0.848265 Incl. 11.7843 +0.1084430 -0.5549609 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.
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 10 26 22 54.13 -00 27.3 2.544 3.291 131.8 13.0 21.3 21.9 2009 10 31 22 50.87 -00 50.8 2.580 3.263 125.9 14.3 21.3 21.9 2009 11 05 22 48.20 -01 11.1 2.621 3.235 120.2 15.4 21.2 22.0 2009 11 10 22 46.13 -01 28.2 2.665 3.207 114.7 16.3 21.2 22.0 2009 11 15 22 44.65 -01 41.8 2.711 3.178 109.3 17.1 21.2 22.1 2009 11 20 22 43.77 -01 52.1 2.760 3.148 104.0 17.7 21.2 22.1 2009 11 25 22 43.46 -01 58.8 2.810 3.118 98.8 18.2 21.2 22.2 2009 11 30 22 43.70 -02 02.1 2.860 3.087 93.8 18.6 21.1 22.2 2009 12 05 22 44.47 -02 02.2 2.910 3.056 89.0 18.8 21.1 22.2 2009 12 10 22 45.74 -01 58.9 2.959 3.024 84.2 18.9 21.1 22.2 2009 12 15 22 47.48 -01 52.6 3.007 2.991 79.6 18.9 21.0 22.2 2009 12 20 22 49.68 -01 43.2 3.053 2.957 75.1 18.8 21.0 22.2 2009 12 25 22 52.29 -01 30.8 3.097 2.923 70.7 18.5 20.9 22.2 2009 12 30 22 55.29 -01 15.7 3.138 2.889 66.4 18.2 20.9 22.2 2010 01 04 22 58.65 -00 57.8 3.175 2.853 62.3 17.8 20.8 22.2 2010 01 09 23 02.36 -00 37.4 3.209 2.817 58.2 17.3 20.8 22.2 2010 01 14 23 06.39 -00 14.5 3.239 2.780 54.2 16.7 20.7 22.2 2010 01 19 23 10.73 +00 10.9 3.265 2.743 50.3 16.0 20.6 22.1 2010 01 24 23 15.35 +00 38.5 3.286 2.704 46.5 15.3 20.6 22.1 2010 01 29 23 20.24 +01 08.4 3.303 2.665 42.7 14.5 20.5 22.0 2010 02 03 23 25.38 +01 40.4 3.315 2.625 39.1 13.7 20.4 22.0 2010 02 08 23 30.77 +02 14.4 3.323 2.584 35.5 12.8 20.3 21.9 2010 02 13 23 36.40 +02 50.5 3.325 2.543 32.0 11.9 20.2 21.9 2010 02 18 23 42.27 +03 28.5 3.322 2.500 28.6 10.9 20.1 21.8 2010 02 23 23 48.36 +04 08.4 3.314 2.457 25.3 9.9 20.0 21.7 2010 02 28 23 54.67 +04 50.1 3.301 2.412 22.1 8.9 19.8 21.6 2010 03 05 00 01.20 +05 33.6 3.283 2.367 19.0 7.8 19.7 21.5 2010 03 10 00 07.96 +06 18.8 3.260 2.321 16.0 6.8 19.6 21.4 2010 03 15 00 14.95 +07 05.8 3.231 2.274 13.1 5.7 19.4 21.3 2010 03 20 00 22.18 +07 54.5 3.198 2.225 10.4 4.6 19.2 21.2 2010 03 25 00 29.66 +08 44.9 3.159 2.176 8.0 3.7 19.1 21.0 2010 03 30 00 37.40 +09 36.9 3.116 2.126 6.1 2.9 18.9 20.9 2010 04 04 00 45.42 +10 30.5 3.068 2.074 5.2 2.5 18.7 20.8 2010 04 09 00 53.75 +11 25.8 3.015 2.021 5.6 2.8 18.5 20.7 2010 04 14 01 02.41 +12 22.8 2.959 1.967 7.1 3.6 18.3 20.7 2010 04 19 01 11.43 +13 21.3 2.898 1.912 8.9 4.7 18.0 20.6 2010 04 24 01 20.85 +14 21.5 2.832 1.855 10.9 5.9 17.8 20.6 2010 04 29 01 30.72 +15 23.3 2.764 1.797 13.0 7.2 17.5 20.5 2010 05 04 01 41.08 +16 26.6 2.692 1.737 15.0 8.6 17.2 20.4 2010 05 09 01 52.02 +17 31.5 2.616 1.676 16.9 10.1 17.0 20.4 2010 05 14 02 03.61 +18 37.8 2.538 1.613 18.6 11.5 16.6 20.3 2010 05 19 02 15.93 +19 45.3 2.457 1.548 20.3 13.1 16.3 20.2 2010 05 24 02 29.11 +20 53.9 2.374 1.482 21.7 14.7 15.9 20.1 2010 05 29 02 43.27 +22 03.0 2.290 1.413 23.0 16.3 15.6 19.9 2010 06 03 02 58.57 +23 12.2 2.204 1.343 24.0 17.9 15.1 19.8 2010 06 08 03 15.22 +24 20.6 2.118 1.270 24.8 19.6 14.7 19.6 2010 06 13 03 33.41 +25 27.0 2.032 1.195 25.3 21.3 14.2 19.5 2010 06 18 03 53.42 +26 29.5 1.946 1.117 25.4 23.0 13.7 19.3 2010 06 23 04 15.51 +27 25.7 1.863 1.037 25.1 24.6 13.1 19.1 2010 06 28 04 39.99 +28 11.8 1.782 0.954 24.4 26.1 12.4 18.8 2010 07 03 05 07.17 +28 43.2 1.705 0.868 23.2 27.4 11.7 18.6 2010 07 08 05 37.29 +28 53.2 1.634 0.780 21.3 28.3 10.9 18.3 2010 07 13 06 10.53 +28 33.6 1.569 0.689 18.7 28.3 10.0 17.9 2010 07 18 06 46.87 +27 34.5 1.511 0.596 15.4 27.0 9.0 17.5 2010 07 23 07 26.13 +25 44.8 1.461 0.505 11.2 23.0 7.9 16.9 2010 07 28 08 07.91 +22 53.4 1.417 0.421 6.1 14.8 6.6 16.2 2010 08 02 08 51.45 +18 52.7 1.371 0.358 1.3 3.8 5.5 15.3 2010 08 07 09 35.22 +13 49.0 1.316 0.336 7.4 22.7 5.0 15.8 2010 08 12 10 17.17 +08 10.8 1.250 0.367 14.3 43.0 5.5 16.5 2010 08 17 10 56.69 +02 28.4 1.188 0.436 21.0 56.2 6.5 17.1 2010 08 22 11 34.63 -03 03.4 1.143 0.522 27.2 62.3 7.6 17.6 2010 08 27 12 11.77 -08 15.8 1.118 0.614 33.1 63.8 8.6 17.9 2010 09 01 12 48.35 -12 59.6 1.115 0.707 38.4 62.7 9.5 18.2 2010 09 06 13 24.17 -17 07.0 1.133 0.797 43.2 60.0 10.3 18.4 2010 09 11 13 58.77 -20 33.0 1.169 0.885 47.3 56.7 11.0 18.6 2010 09 16 14 31.71 -23 17.2 1.221 0.970 50.6 53.1 11.7 18.8 2010 09 21 15 02.62 -25 22.6 1.286 1.053 53.0 49.6 12.4 19.0 2010 09 26 15 31.31 -26 54.6 1.361 1.133 54.8 46.3 13.0 19.2 2010 10 01 15 57.75 -27 59.0 1.444 1.210 55.8 43.2 13.5 19.4 2010 10 06 16 22.03 -28 41.4 1.533 1.284 56.3 40.4 14.1 19.6 2010 10 11 16 44.30 -29 06.7 1.627 1.357 56.3 37.7 14.5 19.7 2010 10 16 17 04.77 -29 18.7 1.725 1.427 55.8 35.3 15.0 19.9 2010 10 21 17 23.63 -29 20.6 1.825 1.495 54.9 33.0 15.4 20.1 2010 10 26 17 41.07 -29 14.7 1.927 1.561 53.8 30.9 15.8 20.2 2010 10 31 17 57.29 -29 02.6 2.030 1.625 52.3 28.9 16.2 20.4 2010 11 05 18 12.43 -28 45.9 2.133 1.688 50.6 27.0 16.6 20.5 2010 11 10 18 26.64 -28 25.4 2.235 1.749 48.7 25.2 16.9 20.6 2010 11 15 18 40.03 -28 01.9 2.337 1.808 46.7 23.5 17.2 20.7 2010 11 20 18 52.70 -27 36.1 2.438 1.866 44.5 21.8 17.5 20.8 2010 11 25 19 04.74 -27 08.3 2.537 1.923 42.2 20.2 17.8 20.9 2010 11 30 19 16.21 -26 38.9 2.633 1.978 39.7 18.6 18.0 21.0This 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.
