C/2009 F1 (Larson)
Orbital Elements
The following orbital elements are taken from MPC 66204:C/2009 F1 (Larson) Epoch 2009 June 18.0 TT = JDT 2455000.5 T 2009 June 25.8905 TT MPC q 1.830634 (2000.0) P Q z +0.009468 Peri. 219.5848 -0.7476526 +0.6640683 +/-0.000154 Node 357.9500 +0.6409600 +0.7237018 e 0.982668 Incl. 171.3756 +0.1737408 +0.1878002 From 145 observations 2009 Mar. 16-May 23, mean residual 0".5.Elements are also available for the current standard epoch:
C/2009 F1 (Larson) Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 T 2009 June 25.8733 TT MPC q 1.830584 (2000.0) P Q z +0.009556 Peri. 219.5797 -0.7477391 +0.6639710 +/-0.000154 Node 357.9524 +0.6408667 +0.7237840 e 0.982507 Incl. 171.3757 +0.1737127 +0.1878277An 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 07 00.46 +11 48.7 1.874 2.367 107.2 23.7 20.1 2009 10 31 06 46.16 +11 34.5 1.804 2.405 115.5 21.9 20.1 2009 11 05 06 29.99 +11 18.2 1.744 2.443 124.2 19.6 20.1 2009 11 10 06 12.03 +10 59.5 1.696 2.482 133.3 16.9 20.1 2009 11 15 05 52.54 +10 37.8 1.663 2.521 142.5 13.8 20.1 2009 11 20 05 31.92 +10 13.3 1.647 2.561 151.8 10.5 20.2 2009 11 25 05 10.77 +09 46.2 1.651 2.601 160.3 7.4 20.2 2009 11 30 04 49.75 +09 17.7 1.674 2.642 166.2 5.1 20.3 2009 12 05 04 29.49 +08 49.0 1.717 2.683 165.9 5.1 20.5 2009 12 10 04 10.54 +08 21.6 1.778 2.725 160.1 7.1 20.6 2009 12 15 03 53.26 +07 56.7 1.857 2.767 152.3 9.5 20.8 2009 12 20 03 37.87 +07 35.3 1.951 2.809 144.2 11.8 20.9 2009 12 25 03 24.43 +07 17.8 2.058 2.852 136.3 13.8 21.1 2009 12 30 03 12.87 +07 04.5 2.176 2.894 128.7 15.4 21.3 2010 01 04 03 03.07 +06 55.3 2.302 2.937 121.4 16.6 21.5 2010 01 09 02 54.86 +06 49.8 2.435 2.980 114.5 17.5 21.7 2010 01 14 02 48.08 +06 47.7 2.573 3.024 107.9 18.0 21.9 2010 01 19 02 42.56 +06 48.7 2.714 3.067 101.6 18.3 22.0 2010 01 24 02 38.15 +06 52.3 2.858 3.111 95.5 18.4 22.2 2010 01 29 02 34.69 +06 58.1 3.002 3.155 89.7 18.2 22.4 2010 02 03 02 32.05 +07 05.9 3.146 3.199 84.1 17.8 22.5 2010 02 08 02 30.14 +07 15.3 3.289 3.243 78.7 17.4 22.7 2010 02 13 02 28.85 +07 26.0 3.430 3.287 73.4 16.7 22.8 2010 02 18 02 28.10 +07 37.8 3.568 3.331 68.3 16.0 23.0 2010 02 23 02 27.82 +07 50.5 3.702 3.375 63.3 15.2 23.1 2010 02 28 02 27.94 +08 03.9 3.833 3.419 58.4 14.3 23.3 2010 03 05 02 28.41 +08 17.8 3.960 3.464 53.6 13.3 23.4 2010 03 10 02 29.17 +08 32.1 4.081 3.508 48.8 12.3 23.5 2010 03 15 02 30.18 +08 46.6 4.197 3.552 44.2 11.3 23.6 2010 03 20 02 31.42 +09 01.2 4.307 3.597 39.6 10.2 23.7 2010 03 25 02 32.84 +09 15.8 4.411 3.641 35.1 9.1 23.8 2010 03 30 02 34.40 +09 30.3 4.509 3.685 30.7 7.9 23.9 2010 04 04 02 36.09 +09 44.6 4.600 3.730 26.3 6.8 24.0 2010 04 09 02 37.87 +09 58.7 4.684 3.774 21.9 5.7 24.1 2010 04 14 02 39.73 +10 12.4 4.762 3.818 17.7 4.6 24.2 2010 04 19 02 41.64 +10 25.8 4.832 3.862 13.5 3.5 24.3 2010 04 24 02 43.58 +10 38.6 4.895 3.907 9.6 2.5 24.4 2010 04 29 02 45.53 +10 50.8 4.950 3.951 6.2 1.6 24.4 2010 05 04 02 47.48 +11 02.5 4.999 3.995 4.9 1.2 24.5 2010 05 09 02 49.40 +11 13.5 5.040 4.039 6.8 1.7 24.6 2010 05 14 02 51.27 +11 23.8 5.074 4.083 10.3 2.5 24.6 2010 05 19 02 53.08 +11 33.4 5.100 4.127 14.3 3.5 24.7 2010 05 24 02 54.81 +11 42.1 5.119 4.171 18.5 4.4 24.7 2010 05 29 02 56.45 +11 49.9 5.132 4.215 22.7 5.3 24.8 2010 06 03 02 57.97 +11 56.8 5.138 4.259 27.0 6.2 24.8 2010 06 08 02 59.36 +12 02.8 5.137 4.303 31.4 7.1 24.9 2010 06 13 03 00.60 +12 07.7 5.129 4.347 35.8 7.9 24.9 2010 06 18 03 01.67 +12 11.5 5.116 4.390 40.3 8.6 25.0 2010 06 23 03 02.55 +12 14.2 5.097 4.434 44.8 9.3 25.0 2010 06 28 03 03.22 +12 15.7 5.073 4.478 49.4 9.9 25.0 2010 07 03 03 03.66 +12 15.9 5.043 4.521 54.0 10.5 25.1 2010 07 08 03 03.86 +12 14.8 5.009 4.565 58.7 11.0 25.1 2010 07 13 03 03.80 +12 12.3 4.971 4.608 63.5 11.4 25.1 2010 07 18 03 03.45 +12 08.4 4.929 4.651 68.3 11.7 25.1 2010 07 23 03 02.78 +12 03.0 4.885 4.694 73.3 12.0 25.2 2010 07 28 03 01.80 +11 56.0 4.838 4.737 78.3 12.1 25.2 2010 08 02 03 00.47 +11 47.3 4.790 4.780 83.4 12.2 25.2 2010 08 07 02 58.79 +11 37.0 4.740 4.823 88.6 12.1 25.2 2010 08 12 02 56.73 +11 24.8 4.691 4.866 93.9 12.0 25.2 2010 08 17 02 54.28 +11 10.9 4.642 4.909 99.4 11.7 25.2 2010 08 22 02 51.44 +10 55.2 4.594 4.952 104.9 11.4 25.3 2010 08 27 02 48.21 +10 37.6 4.550 4.994 110.5 10.9 25.3 2010 09 01 02 44.59 +10 18.2 4.508 5.037 116.3 10.4 25.3 2010 09 06 02 40.59 +09 57.0 4.471 5.080 122.1 9.7 25.3 2010 09 11 02 36.23 +09 34.1 4.439 5.122 128.1 8.9 25.3 2010 09 16 02 31.52 +09 09.6 4.413 5.164 134.1 8.0 25.4 2010 09 21 02 26.51 +08 43.7 4.394 5.206 140.3 7.1 25.4 2010 09 26 02 21.25 +08 16.6 4.383 5.249 146.5 6.1 25.4 2010 10 01 02 15.76 +07 48.6 4.381 5.291 152.7 5.0 25.4 2010 10 06 02 10.12 +07 19.9 4.387 5.333 158.9 3.9 25.5 2010 10 11 02 04.39 +06 50.9 4.404 5.375 165.1 2.7 25.5 2010 10 16 01 58.62 +06 22.0 4.430 5.416 170.8 1.7 25.6 2010 10 21 01 52.88 +05 53.4 4.466 5.458 174.6 1.0 25.6 2010 10 26 01 47.24 +05 25.7 4.513 5.500 172.4 1.4 25.7 2010 10 31 01 41.76 +04 59.0 4.569 5.541 167.0 2.3 25.7 2010 11 05 01 36.48 +04 33.8 4.636 5.583 161.0 3.3 25.8 2010 11 10 01 31.47 +04 10.2 4.711 5.624 154.9 4.3 25.9 2010 11 15 01 26.76 +03 48.5 4.796 5.665 148.8 5.2 25.9 2010 11 20 01 22.39 +03 28.9 4.889 5.707 142.7 6.0 26.0 2010 11 25 01 18.37 +03 11.5 4.990 5.748 136.6 6.8 26.1 2010 11 30 01 14.72 +02 56.3 5.097 5.789 130.7 7.4 26.2This 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.
