MPC
CBAT
ICQ
P/2007 A2 (Christensen) Epoch 2007 Jan. 20.0 TT = JDT 2454120.5 T 2007 Jan. 17.8912 TT MPC q 2.796364 (2000.0) P Q n 0.0618235 Peri. 186.9823 -0.6051052 -0.6984252 a 6.334323 Node 301.0453 +0.7503221 -0.3397787 e 0.558538 Incl. 26.4911 +0.2662037 -0.6298831 P 15.9 From 87 observations 2006 Nov. 24-2007 Feb. 17, mean residual 0".6.Elements are also available for the current standard epoch:
P/2007 A2 (Christensen) Epoch 2007 Apr. 10.0 TT = JDT 2454200.5 T 2007 Jan. 17.8892 TT MPC q 2.796366 (2000.0) P Q n 0.0618385 Peri. 186.9817 -0.6051029 -0.6984247 a 6.333299 Node 301.0456 +0.7503226 -0.3397710 e 0.558466 Incl. 26.4915 +0.2662076 -0.6298878 P 15.9An 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 09 04.92 +00 06.3 3.138 2.972 71.3 18.8 20.7 2007 06 04 09 10.67 -00 26.6 3.208 2.985 68.2 18.4 20.8 2007 06 09 09 16.58 -01 00.9 3.277 2.998 65.3 17.9 20.8 2007 06 14 09 22.63 -01 36.5 3.346 3.011 62.3 17.4 20.9 2007 06 19 09 28.82 -02 13.5 3.412 3.025 59.5 16.8 21.0 2007 06 24 09 35.11 -02 51.9 3.478 3.040 56.6 16.2 21.0 2007 06 29 09 41.51 -03 31.6 3.541 3.054 53.9 15.6 21.1 2007 07 04 09 47.99 -04 12.5 3.603 3.069 51.1 14.9 21.2 2007 07 09 09 54.54 -04 54.7 3.664 3.085 48.5 14.3 21.2 2007 07 14 10 01.16 -05 38.2 3.722 3.100 45.8 13.6 21.3 2007 07 19 10 07.83 -06 22.8 3.778 3.116 43.2 12.9 21.3 2007 07 24 10 14.55 -07 08.6 3.832 3.133 40.7 12.2 21.4 2007 07 29 10 21.30 -07 55.4 3.884 3.149 38.2 11.5 21.4 2007 08 03 10 28.08 -08 43.3 3.934 3.166 35.7 10.8 21.5 2007 08 08 10 34.89 -09 32.1 3.981 3.183 33.3 10.1 21.5 2007 08 13 10 41.71 -10 21.8 4.026 3.201 31.0 9.4 21.6 2007 08 18 10 48.55 -11 12.5 4.068 3.218 28.8 8.7 21.6 2007 08 23 10 55.39 -12 03.9 4.107 3.236 26.7 8.1 21.7 2007 08 28 11 02.23 -12 56.1 4.144 3.254 24.7 7.5 21.7 2007 09 02 11 09.06 -13 49.0 4.178 3.273 22.9 6.9 21.8 2007 09 07 11 15.89 -14 42.5 4.209 3.291 21.4 6.4 21.8 2007 09 12 11 22.70 -15 36.5 4.238 3.310 20.1 6.0 21.8 2007 09 17 11 29.50 -16 31.1 4.263 3.329 19.1 5.7 21.9 2007 09 22 11 36.27 -17 26.1 4.285 3.348 18.6 5.5 21.9 2007 09 27 11 43.01 -18 21.5 4.304 3.368 18.5 5.4 21.9 2007 10 02 11 49.72 -19 17.2 4.320 3.388 18.8 5.5 22.0 2007 10 07 11 56.39 -20 13.2 4.332 3.407 19.7 5.7 22.0 2007 10 12 12 03.01 -21 09.4 4.341 3.427 20.9 6.0 22.0 2007 10 17 12 09.58 -22 05.8 4.348 3.448 22.5 6.3 22.1 2007 10 22 12 16.10 -23 02.2 4.350 3.468 24.4 6.8 22.1 2007 10 27 12 22.54 -23 58.7 4.350 3.488 26.5 7.3 22.1 2007 11 01 12 28.91 -24 55.1 4.346 3.509 28.8 7.8 22.1 2007 11 06 12 35.19 -25 51.5 4.339 3.530 31.3 8.4 22.2 2007 11 11 12 41.38 -26 47.8 4.329 3.551 34.0 9.0 22.2 2007 11 16 12 47.47 -27 43.9 4.315 3.572 36.7 9.5 22.2 2007 11 21 12 53.43 -28 39.8 4.299 3.593 39.6 10.1 22.2 2007 11 26 12 59.26 -29 35.4 4.279 3.614 42.6 10.6 22.2 2007 12 01 13 04.94 -30 30.7 4.256 3.636 45.7 11.2 22.3 2007 12 06 13 10.47 -31 25.6 4.231 3.657 48.8 11.7 22.3 2007 12 11 13 15.81 -32 20.1 4.202 3.679 52.0 12.2 22.3 2007 12 16 13 20.94 -33 14.1 4.171 3.701 55.3 12.6 22.3 2007 12 21 13 25.86 -34 07.5 4.138 3.723 58.7 13.0 22.3 2007 12 26 13 30.53 -35 00.3 4.102 3.745 62.1 13.4 22.3 2007 12 31 13 34.94 -35 52.5 4.064 3.767 65.6 13.8 22.3 2008 01 05 13 39.05 -36 43.9 4.025 3.789 69.2 14.0 22.3 2008 01 10 13 42.85 -37 34.4 3.984 3.811 72.8 14.3 22.3 2008 01 15 13 46.30 -38 23.9 3.941 3.833 76.5 14.4 22.3 2008 01 20 13 49.37 -39 12.4 3.898 3.856 80.3 14.6 22.3 2008 01 25 13 52.04 -39 59.6 3.854 3.878 84.1 14.6 22.3 2008 01 30 13 54.28 -40 45.3 3.810 3.900 87.9 14.6 22.3 2008 02 04 13 56.06 -41 29.5 3.766 3.923 91.8 14.5 22.3 2008 02 09 13 57.36 -42 11.8 3.722 3.946 95.8 14.4 22.3 2008 02 14 13 58.14 -42 52.0 3.679 3.968 99.8 14.2 22.3 2008 02 19 13 58.40 -43 29.7 3.637 3.991 103.8 13.9 22.3 2008 02 24 13 58.13 -44 04.7 3.598 4.014 107.9 13.6 22.3 2008 02 29 13 57.31 -44 36.6 3.560 4.036 111.9 13.2 22.3 2008 03 05 13 55.96 -45 05.1 3.525 4.059 116.0 12.7 22.3 2008 03 10 13 54.09 -45 29.7 3.494 4.082 120.0 12.2 22.3 2008 03 15 13 51.73 -45 50.1 3.465 4.105 124.0 11.6 22.3 2008 03 20 13 48.93 -46 06.0 3.441 4.128 127.8 11.0 22.3 2008 03 25 13 45.74 -46 17.1 3.422 4.150 131.5 10.4 22.4 2008 03 30 13 42.23 -46 23.1 3.407 4.173 135.0 9.7 22.4 2008 04 04 13 38.48 -46 24.0 3.398 4.196 138.2 9.1 22.4 2008 04 09 13 34.58 -46 19.7 3.394 4.219 141.0 8.6 22.4 2008 04 14 13 30.62 -46 10.2 3.396 4.242 143.3 8.1 22.4 2008 04 19 13 26.70 -45 55.9 3.404 4.265 144.9 7.8 22.5 2008 04 24 13 22.92 -45 37.2 3.418 4.288 145.9 7.5 22.5 2008 04 29 13 19.34 -45 14.3 3.438 4.311 146.1 7.5 22.5 2008 05 04 13 16.05 -44 47.9 3.465 4.334 145.6 7.6 22.6 2008 05 09 13 13.10 -44 18.6 3.497 4.357 144.3 7.8 22.6 2008 05 14 13 10.55 -43 47.1 3.536 4.380 142.4 8.1 22.7 2008 05 19 13 08.44 -43 13.9 3.581 4.403 139.9 8.5 22.7 2008 05 24 13 06.78 -42 39.8 3.631 4.426 137.1 9.0 22.8 2008 05 29 13 05.59 -42 05.3 3.686 4.449 133.9 9.5 22.8 2008 06 03 13 04.86 -41 30.9 3.747 4.472 130.5 9.9 22.9 2008 06 08 13 04.60 -40 57.3 3.812 4.495 126.9 10.4 22.9 2008 06 13 13 04.79 -40 24.8 3.882 4.518 123.2 10.8 23.0 2008 06 18 13 05.43 -39 53.8 3.955 4.541 119.4 11.2 23.1 2008 06 23 13 06.47 -39 24.6 4.032 4.564 115.6 11.6 23.1 2008 06 28 13 07.92 -38 57.3 4.112 4.587 111.7 11.9 23.2 2008 07 03 13 09.73 -38 32.3 4.195 4.610 107.9 12.1 23.3This 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.