MPC
CBAT
ICQ
P/2007 R1 (Larson) Epoch 2007 Aug. 8.0 TT = JDT 2454320.5 T 2007 Aug. 23.7619 TT MPC q 4.352138 (2000.0) P Q n 0.0666779 Peri. 175.1427 +0.9984255 +0.0559520 a 6.023026 Node 181.6654 -0.0549675 +0.9617561 e 0.277417 Incl. 7.8772 -0.0111830 +0.2681316 P 14.8 From 179 observations 2007 Sept. 4-2008 Feb. 22, mean residual 0".7.Elements are also available for the current standard epoch:
P/2007 R1 (Larson) Epoch 2008 May 14.0 TT = JDT 2454600.5 T 2007 Aug. 24.0739 TT MPC q 4.352250 (2000.0) P Q n 0.0666184 Peri. 175.1807 +0.9984604 +0.0553261 a 6.026615 Node 181.6634 -0.0543629 +0.9617842 e 0.277828 Incl. 7.8759 -0.0110216 +0.2681606 P 14.8An 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 04 14 01 35.46 +07 12.9 5.469 4.468 2.6 0.6 18.2 2008 04 19 01 40.69 +07 39.3 5.474 4.472 4.0 0.9 18.2 2008 04 24 01 45.92 +08 05.1 5.474 4.477 7.1 1.6 18.2 2008 04 29 01 51.14 +08 30.3 5.469 4.482 10.5 2.3 18.2 2008 05 04 01 56.33 +08 54.9 5.460 4.487 13.9 3.1 18.2 2008 05 09 02 01.50 +09 18.7 5.446 4.493 17.3 3.8 18.2 2008 05 14 02 06.63 +09 41.7 5.428 4.498 20.8 4.6 18.2 2008 05 19 02 11.71 +10 03.8 5.406 4.503 24.3 5.3 18.2 2008 05 24 02 16.73 +10 25.0 5.380 4.509 27.8 6.0 18.2 2008 05 29 02 21.69 +10 45.3 5.349 4.514 31.3 6.7 18.2 2008 06 03 02 26.57 +11 04.5 5.315 4.520 34.9 7.4 18.2 2008 06 08 02 31.37 +11 22.6 5.276 4.526 38.4 8.0 18.2 2008 06 13 02 36.06 +11 39.7 5.234 4.531 42.0 8.6 18.2 2008 06 18 02 40.64 +11 55.5 5.189 4.537 45.6 9.2 18.1 2008 06 23 02 45.11 +12 10.2 5.140 4.543 49.3 9.8 18.1 2008 06 28 02 49.43 +12 23.6 5.088 4.549 53.0 10.3 18.1 2008 07 03 02 53.61 +12 35.7 5.034 4.555 56.7 10.8 18.1 2008 07 08 02 57.63 +12 46.5 4.976 4.561 60.5 11.2 18.1 2008 07 13 03 01.46 +12 56.0 4.916 4.568 64.3 11.6 18.1 2008 07 18 03 05.11 +13 04.1 4.854 4.574 68.2 11.9 18.0 2008 07 23 03 08.55 +13 10.8 4.790 4.580 72.1 12.2 18.0 2008 07 28 03 11.76 +13 16.0 4.724 4.587 76.1 12.4 18.0 2008 08 02 03 14.74 +13 19.8 4.658 4.594 80.1 12.6 18.0 2008 08 07 03 17.45 +13 22.2 4.590 4.600 84.2 12.7 17.9 2008 08 12 03 19.89 +13 23.1 4.522 4.607 88.4 12.7 17.9 2008 08 17 03 22.05 +13 22.5 4.453 4.614 92.7 12.7 17.9 2008 08 22 03 23.90 +13 20.4 4.385 4.621 97.1 12.5 17.9 2008 08 27 03 25.43 +13 16.9 4.318 4.627 101.5 12.4 17.8 2008 09 01 03 26.63 +13 11.9 4.252 4.634 106.1 12.1 17.8 2008 09 06 03 27.49 +13 05.5 4.188 4.642 110.7 11.7 17.8 2008 09 11 03 28.00 +12 57.7 4.126 4.649 115.5 11.3 17.8 2008 09 16 03 28.15 +12 48.6 4.067 4.656 120.3 10.7 17.7 2008 09 21 03 27.95 +12 38.2 4.012 4.663 125.2 10.1 17.7 2008 09 26 03 27.40 +12 26.6 3.960 4.671 130.2 9.4 17.7 2008 10 01 03 26.51 +12 14.0 3.913 4.678 135.3 8.7 17.7 2008 10 06 03 25.28 +12 00.4 3.871 4.685 140.5 7.8 17.6 2008 10 11 03 23.76 +11 46.1 3.834 4.693 145.8 6.9 17.6 2008 10 16 03 21.95 +11 31.1 3.804 4.700 151.0 5.9 17.6 2008 10 21 03 19.91 +11 15.8 3.780 4.708 156.3 4.9 17.6 2008 10 26 03 17.66 +11 00.2 3.762 4.716 161.5 3.8 17.6 2008 10 31 03 15.25 +10 44.7 3.752 4.724 166.5 2.8 17.6 2008 11 05 03 12.73 +10 29.6 3.750 4.731 170.8 1.9 17.6 2008 11 10 03 10.16 +10 15.0 3.755 4.739 172.8 1.5 17.6 2008 11 15 03 07.59 +10 01.2 3.768 4.747 170.9 1.9 17.6 2008 11 20 03 05.08 +09 48.4 3.789 4.755 166.6 2.8 17.7 2008 11 25 03 02.67 +09 37.0 3.817 4.763 161.6 3.8 17.7 2008 11 30 03 00.41 +09 27.0 3.852 4.771 156.3 4.8 17.7 2008 12 05 02 58.35 +09 18.6 3.894 4.780 150.9 5.7 17.7 2008 12 10 02 56.52 +09 12.0 3.943 4.788 145.6 6.7 17.8 2008 12 15 02 54.97 +09 07.2 3.998 4.796 140.2 7.5 17.8 2008 12 20 02 53.71 +09 04.3 4.059 4.804 134.9 8.3 17.9 2008 12 25 02 52.76 +09 03.3 4.125 4.813 129.7 9.1 17.9 2008 12 30 02 52.14 +09 04.2 4.196 4.821 124.5 9.7 17.9 2009 01 04 02 51.86 +09 06.9 4.270 4.830 119.4 10.2 18.0 2009 01 09 02 51.92 +09 11.4 4.348 4.838 114.4 10.7 18.0 2009 01 14 02 52.31 +09 17.6 4.429 4.847 109.5 11.0 18.1 2009 01 19 02 53.04 +09 25.4 4.513 4.855 104.6 11.3 18.1 2009 01 24 02 54.09 +09 34.7 4.598 4.864 99.9 11.5 18.2 2009 01 29 02 55.45 +09 45.3 4.684 4.873 95.2 11.6 18.2 2009 02 03 02 57.12 +09 57.1 4.770 4.882 90.6 11.6 18.3 2009 02 08 02 59.08 +10 10.0 4.857 4.890 86.1 11.6 18.3 2009 02 13 03 01.31 +10 23.9 4.944 4.899 81.7 11.5 18.4 2009 02 18 03 03.80 +10 38.5 5.030 4.908 77.3 11.3 18.4 2009 02 23 03 06.54 +10 53.8 5.114 4.917 73.0 11.1 18.5 2009 02 28 03 09.50 +11 09.7 5.197 4.926 68.8 10.8 18.5 2009 03 05 03 12.68 +11 26.1 5.278 4.935 64.6 10.5 18.5 2009 03 10 03 16.06 +11 42.7 5.356 4.944 60.5 10.1 18.6 2009 03 15 03 19.62 +11 59.5 5.432 4.953 56.5 9.6 18.6 2009 03 20 03 23.35 +12 16.5 5.505 4.962 52.5 9.2 18.7 2009 03 25 03 27.24 +12 33.4 5.575 4.971 48.6 8.7 18.7 2009 03 30 03 31.27 +12 50.2 5.641 4.980 44.7 8.1 18.7 2009 04 04 03 35.43 +13 06.9 5.703 4.990 40.9 7.5 18.8 2009 04 09 03 39.70 +13 23.3 5.761 4.999 37.1 6.9 18.8 2009 04 14 03 44.08 +13 39.3 5.816 5.008 33.3 6.3 18.8 2009 04 19 03 48.56 +13 54.9 5.866 5.018 29.6 5.7 18.8 2009 04 24 03 53.11 +14 10.0 5.912 5.027 26.0 5.0 18.9 2009 04 29 03 57.73 +14 24.6 5.953 5.036 22.4 4.4 18.9 2009 05 04 04 02.42 +14 38.5 5.989 5.046 18.9 3.7 18.9 2009 05 09 04 07.15 +14 51.8 6.021 5.055 15.4 3.0 18.9 2009 05 14 04 11.91 +15 04.4 6.048 5.065 12.1 2.4 19.0 2009 05 19 04 16.71 +15 16.3 6.070 5.074 9.2 1.8 19.0This 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.
