MPC
CBAT
ICQ
71P/Clark
Epoch 2006 May 25.0 TT = JDT 2453880.5
T 2006 June 6.8079 TT MPC
q 1.562114 (2000.0) P Q
n 0.1786149 Peri. 208.7505 -0.0334558 +0.9892636
a 3.122657 Node 59.6578 -0.8825395 +0.0375602
e 0.499749 Incl. 9.4880 -0.4690466 -0.1412332
P 5.52
From 111 observations 2000-2006, mean residual 0".8. Nongravitational
parameters A1 = +0.44, A2 = -0.6966.
Elements are also available for the current standard epoch:
71P/Clark Epoch 2007 Apr. 10.0 TT = JDT 2454200.5 T 2006 June 6.8272 TT MPC q 1.562289 (2000.0) P Q n 0.1786326 Peri. 208.7654 -0.0332063 +0.9892722 a 3.122450 Node 59.6573 -0.8825297 +0.0377821 e 0.499659 Incl. 9.4879 -0.4690828 -0.1411136 P 5.52An 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! 2007 05 30 02 33.37 +11 13.4 4.039 3.188 28.8 8.8 20.4 24.6 2007 06 04 02 39.38 +11 45.1 4.027 3.212 32.0 9.6 20.4 24.7 2007 06 09 02 45.26 +12 15.3 4.011 3.235 35.2 10.4 20.5 24.7 2007 06 14 02 50.99 +12 44.0 3.991 3.258 38.5 11.2 20.5 24.8 2007 06 19 02 56.56 +13 11.2 3.968 3.281 41.8 11.9 20.5 24.8 2007 06 24 03 01.97 +13 36.8 3.941 3.304 45.2 12.6 20.6 24.8 2007 06 29 03 07.19 +14 00.9 3.911 3.327 48.6 13.3 20.6 24.8 2007 07 04 03 12.22 +14 23.6 3.877 3.350 52.1 13.9 20.6 24.9 2007 07 09 03 17.04 +14 44.8 3.840 3.372 55.6 14.4 20.6 24.9 2007 07 14 03 21.63 +15 04.5 3.800 3.394 59.2 14.9 20.7 24.9 2007 07 19 03 25.97 +15 22.7 3.757 3.416 62.9 15.4 20.7 24.9 2007 07 24 03 30.04 +15 39.4 3.712 3.438 66.6 15.7 20.7 24.9 2007 07 29 03 33.82 +15 54.7 3.664 3.459 70.5 16.1 20.7 24.9 2007 08 03 03 37.29 +16 08.6 3.614 3.481 74.4 16.3 20.7 24.9 2007 08 08 03 40.44 +16 21.1 3.563 3.502 78.4 16.5 20.7 24.9 2007 08 13 03 43.23 +16 32.2 3.510 3.523 82.5 16.6 20.7 24.8 2007 08 18 03 45.65 +16 41.9 3.455 3.544 86.7 16.6 20.7 24.8 2007 08 23 03 47.65 +16 50.3 3.401 3.564 91.0 16.5 20.7 24.8 2007 08 28 03 49.24 +16 57.3 3.346 3.584 95.4 16.3 20.7 24.8 2007 09 02 03 50.38 +17 02.9 3.291 3.605 99.9 16.0 20.7 24.7 2007 09 07 03 51.05 +17 07.2 3.237 3.624 104.6 15.6 20.7 24.7 2007 09 12 03 51.24 +17 10.2 3.184 3.644 109.4 15.1 20.7 24.7 2007 09 17 03 50.92 +17 11.8 3.134 3.664 114.3 14.5 20.7 24.6 2007 09 22 03 50.10 +17 12.0 3.085 3.683 119.4 13.7 20.7 24.6 2007 09 27 03 48.76 +17 10.9 3.040 3.702 124.6 12.9 20.7 24.5 2007 10 02 03 46.93 +17 08.6 2.999 3.721 129.9 11.9 20.7 24.5 2007 10 07 03 44.60 +17 04.9 2.962 3.740 135.4 10.8 20.8 24.4 2007 10 12 03 41.81 +16 59.9 2.930 3.759 141.0 9.6 20.8 24.3 2007 10 17 03 38.59 +16 53.7 2.904 3.777 146.7 8.3 20.8 24.3 2007 10 22 03 35.00 +16 46.5 2.884 3.795 152.5 7.0 20.8 24.2 2007 10 27 03 31.09 +16 38.3 2.871 3.813 158.4 5.5 20.8 24.1 2007 11 01 03 26.94 +16 29.2 2.865 3.831 164.4 4.0 20.8 24.1 2007 11 06 03 22.63 +16 19.6 2.867 3.848 170.3 2.5 20.9 24.0 2007 11 11 03 18.24 +16 09.7 2.877 3.866 176.1 1.0 20.9 23.9 2007 11 16 03 13.86 +15 59.6 2.895 3.883 176.6 0.9 20.9 23.9 2007 11 21 03 09.57 +15 49.8 2.921 3.900 171.0 2.3 21.0 24.0 2007 11 26 03 05.47 +15 40.5 2.955 3.917 165.0 3.7 21.0 24.2 2007 12 01 03 01.61 +15 32.1 2.996 3.933 159.1 5.1 21.1 24.3 2007 12 06 02 58.07 +15 24.6 3.045 3.950 153.2 6.5 21.2 24.4 2007 12 11 02 54.89 +15 18.5 3.101 3.966 147.3 7.7 21.2 24.5 2007 12 16 02 52.12 +15 13.9 3.163 3.982 141.6 8.8 21.3 24.6 2007 12 21 02 49.80 +15 11.0 3.232 3.998 136.0 9.8 21.4 24.7 2007 12 26 02 47.93 +15 09.7 3.305 4.013 130.4 10.7 21.4 24.8 2007 12 31 02 46.53 +15 10.3 3.383 4.029 125.0 11.5 21.5 24.9 2008 01 05 02 45.59 +15 12.8 3.465 4.044 119.7 12.2 21.6 25.0 2008 01 10 02 45.12 +15 17.0 3.551 4.059 114.5 12.7 21.7 25.0 2008 01 15 02 45.09 +15 23.0 3.639 4.074 109.5 13.2 21.8 25.1 2008 01 20 02 45.50 +15 30.7 3.730 4.089 104.5 13.5 21.8 25.2 2008 01 25 02 46.33 +15 40.0 3.822 4.103 99.7 13.7 21.9 25.3 2008 01 30 02 47.54 +15 50.8 3.915 4.118 94.9 13.8 22.0 25.3 2008 02 04 02 49.12 +16 03.0 4.008 4.132 90.3 13.8 22.1 25.4 2008 02 09 02 51.06 +16 16.4 4.101 4.146 85.7 13.7 22.1 25.4 2008 02 14 02 53.32 +16 30.9 4.194 4.159 81.2 13.6 22.2 25.5 2008 02 19 02 55.89 +16 46.4 4.285 4.173 76.8 13.3 22.3 25.5 2008 02 24 02 58.73 +17 02.8 4.375 4.186 72.5 13.0 22.3 25.6 2008 02 29 03 01.84 +17 19.9 4.464 4.199 68.3 12.7 22.4 25.6 2008 03 05 03 05.19 +17 37.6 4.550 4.212 64.1 12.2 22.5 25.6 2008 03 10 03 08.76 +17 55.8 4.633 4.225 60.0 11.7 22.5 25.7 2008 03 15 03 12.54 +18 14.4 4.713 4.238 56.0 11.2 22.6 25.7 2008 03 20 03 16.50 +18 33.3 4.790 4.250 52.0 10.6 22.6 25.7 2008 03 25 03 20.63 +18 52.4 4.864 4.263 48.1 10.0 22.7 25.7 2008 03 30 03 24.91 +19 11.5 4.934 4.275 44.2 9.4 22.7 25.7 2008 04 04 03 29.34 +19 30.7 5.000 4.287 40.3 8.7 22.8 25.7 2008 04 09 03 33.89 +19 49.8 5.061 4.298 36.5 8.0 22.8 25.7 2008 04 14 03 38.55 +20 08.8 5.119 4.310 32.8 7.2 22.9 25.7 2008 04 19 03 43.32 +20 27.5 5.172 4.321 29.1 6.5 22.9 25.7 2008 04 24 03 48.16 +20 45.9 5.220 4.332 25.4 5.7 22.9 25.7 2008 04 29 03 53.08 +21 04.0 5.263 4.343 21.7 4.9 23.0 25.7 2008 05 04 03 58.07 +21 21.7 5.302 4.354 18.0 4.1 23.0 25.7 2008 05 09 04 03.11 +21 38.9 5.335 4.365 14.4 3.3 23.0 25.7 2008 05 14 04 08.19 +21 55.7 5.364 4.375 10.8 2.5 23.1 25.6 2008 05 19 04 13.30 +22 12.0 5.387 4.386 7.2 1.7 23.1 25.6 2008 05 24 04 18.42 +22 27.7 5.406 4.396 3.7 0.9 23.1 25.5 2008 05 29 04 23.56 +22 42.8 5.419 4.406 1.1 0.3 23.1 25.5 2008 06 03 04 28.69 +22 57.4 5.427 4.415 3.8 0.9 23.1 25.5 2008 06 08 04 33.81 +23 11.4 5.430 4.425 7.3 1.7 23.2 25.6 2008 06 13 04 38.91 +23 24.7 5.428 4.434 10.9 2.5 23.2 25.7 2008 06 18 04 43.97 +23 37.5 5.420 4.443 14.4 3.3 23.2 25.7 2008 06 23 04 48.98 +23 49.6 5.408 4.453 18.0 4.1 23.2 25.8 2008 06 28 04 53.93 +24 01.1 5.390 4.461 21.7 4.8 23.2 25.8 2008 07 03 04 58.81 +24 12.1 5.368 4.470 25.3 5.6 23.2 25.9This 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.