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51P/Harrington

Orbital Elements

The following orbital elements are taken from MPC 63602:

51P/Harrington
Epoch 2008 June 23.0 TT = JDT 2454640.5
T 2008 June 18.4336 TT                                  MPC
q   1.687561             (2000.0)            P               Q
n   0.1382915      Peri.  269.1898      +0.9879858      +0.1226315
a   3.703443       Node    83.7626      -0.0744927      +0.9110885
e   0.544326       Incl.    5.4289      -0.1354062      +0.3935471
P   7.13
From 337 observations 1994-2008, mean residual 0".9.  Nongravitational
     parameters A1 = +1.75, A2 = +0.2693.

Elements are also available for the current standard epoch:

51P/Harrington
Epoch 2008 Nov. 30.0 TT = JDT 2454800.5
T 2008 June 18.4479 TT                                  MPC
q   1.687609             (2000.0)            P               Q
n   0.1382488      Peri.  269.1961      +0.9880006      +0.1225133
a   3.704206       Node    83.7631      -0.0743844      +0.9110977
e   0.544407       Incl.    5.4288      -0.1353578      +0.3935625
P   7.13

An 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 m2

WARNING!

This 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.

2008 09 11 04 33.31 +16 41.2 1.425 1.873 99.3 32.0 16.2 21.5 2008 09 16 04 38.99 +16 55.4 1.398 1.893 102.7 31.2 16.3 21.4 2008 09 21 04 43.85 +17 08.0 1.371 1.915 106.4 30.2 16.3 21.4 2008 09 26 04 47.86 +17 19.0 1.345 1.937 110.3 29.0 16.4 21.4 2008 10 01 04 50.94 +17 28.8 1.320 1.959 114.5 27.7 16.4 21.3 2008 10 06 04 53.06 +17 37.6 1.296 1.983 118.9 26.2 16.5 21.2 2008 10 11 04 54.20 +17 45.6 1.275 2.007 123.5 24.5 16.6 21.2 2008 10 16 04 54.34 +17 53.0 1.256 2.031 128.4 22.6 16.7 21.1 2008 10 21 04 53.49 +17 59.9 1.240 2.056 133.5 20.6 16.7 21.0 2008 10 26 04 51.68 +18 06.5 1.228 2.082 138.9 18.3 16.8 21.0 2008 10 31 04 48.96 +18 12.6 1.219 2.108 144.5 15.9 16.9 20.9 2008 11 05 04 45.44 +18 18.4 1.216 2.134 150.3 13.3 17.0 20.8 2008 11 10 04 41.24 +18 23.9 1.217 2.161 156.2 10.6 17.1 20.8 2008 11 15 04 36.54 +18 29.1 1.225 2.188 162.3 7.9 17.2 20.7 2008 11 20 04 31.50 +18 34.1 1.238 2.215 168.4 5.1 17.4 20.6 2008 11 25 04 26.33 +18 38.8 1.258 2.243 174.3 2.5 17.5 20.5 2008 11 30 04 21.21 +18 43.6 1.285 2.270 176.9 1.3 17.7 20.5 2008 12 05 04 16.34 +18 48.7 1.318 2.298 172.1 3.4 17.8 20.7 2008 12 10 04 11.89 +18 54.2 1.358 2.327 166.2 5.8 18.0 21.0 2008 12 15 04 07.99 +19 00.4 1.405 2.355 160.3 8.1 18.2 21.2 2008 12 20 04 04.72 +19 07.4 1.458 2.383 154.5 10.2 18.4 21.4 2008 12 25 04 02.16 +19 15.5 1.516 2.412 148.9 12.2 18.6 21.5 2008 12 30 04 00.35 +19 24.8 1.580 2.441 143.4 13.9 18.7 21.7 2009 01 04 03 59.29 +19 35.3 1.649 2.470 138.1 15.4 18.9 21.9 2009 01 09 03 58.98 +19 47.0 1.722 2.498 133.0 16.7 19.1 22.1 2009 01 14 03 59.39 +19 59.8 1.800 2.527 128.0 17.9 19.3 22.2 2009 01 19 04 00.49 +20 13.7 1.881 2.556 123.2 18.8 19.5 22.4 2009 01 24 04 02.22 +20 28.5 1.966 2.585 118.6 19.5 19.7 22.5 2009 01 29 04 04.56 +20 44.0 2.053 2.614 114.1 20.1 19.9 22.7 2009 02 03 04 07.46 +21 00.2 2.143 2.643 109.7 20.5 20.1 22.8 2009 02 08 04 10.87 +21 16.8 2.234 2.672 105.5 20.8 20.3 22.9 2009 02 13 04 14.74 +21 33.6 2.327 2.701 101.4 21.0 20.5 23.0 2009 02 18 04 19.03 +21 50.6 2.422 2.730 97.3 21.0 20.6 23.1 2009 02 23 04 23.71 +22 07.5 2.517 2.759 93.4 21.0 20.8 23.2 2009 02 28 04 28.74 +22 24.1 2.613 2.788 89.6 20.8 21.0 23.3 2009 03 05 04 34.08 +22 40.4 2.709 2.817 85.8 20.6 21.2 23.4 2009 03 10 04 39.71 +22 56.2 2.806 2.845 82.1 20.2 21.3 23.5 2009 03 15 04 45.58 +23 11.3 2.901 2.874 78.5 19.8 21.5 23.6 2009 03 20 04 51.68 +23 25.7 2.997 2.903 75.0 19.4 21.6 23.7 2009 03 25 04 57.99 +23 39.3 3.091 2.931 71.5 18.8 21.8 23.7 2009 03 30 05 04.47 +23 51.9 3.184 2.959 68.0 18.2 21.9 23.8 2009 04 04 05 11.11 +24 03.5 3.276 2.988 64.6 17.6 22.1 23.9 2009 04 09 05 17.89 +24 14.0 3.367 3.016 61.3 16.9 22.2 23.9 2009 04 14 05 24.78 +24 23.4 3.455 3.044 57.9 16.2 22.4 24.0 2009 04 19 05 31.77 +24 31.6 3.542 3.072 54.6 15.5 22.5 24.0 2009 04 24 05 38.85 +24 38.6 3.626 3.099 51.4 14.7 22.6 24.1 2009 04 29 05 46.00 +24 44.3 3.708 3.127 48.1 13.9 22.7 24.1 2009 05 04 05 53.20 +24 48.7 3.787 3.155 44.9 13.0 22.9 24.2 2009 05 09 06 00.44 +24 51.8 3.864 3.182 41.7 12.2 23.0 24.2 2009 05 14 06 07.71 +24 53.6 3.937 3.209 38.6 11.3 23.1 24.2 2009 05 19 06 15.00 +24 54.2 4.008 3.237 35.4 10.4 23.2 24.2 2009 05 24 06 22.29 +24 53.4 4.075 3.264 32.2 9.5 23.3 24.2 2009 05 29 06 29.58 +24 51.4 4.139 3.290 29.1 8.6 23.4 24.3 2009 06 03 06 36.86 +24 48.1 4.199 3.317 26.0 7.7 23.5 24.3 2009 06 08 06 44.10 +24 43.6 4.256 3.344 22.8 6.8 23.6 24.3 2009 06 13 06 51.31 +24 38.0 4.309 3.370 19.7 5.8 23.7 24.3 2009 06 18 06 58.47 +24 31.2 4.358 3.397 16.6 4.9 23.8 24.3 2009 06 23 07 05.59 +24 23.3 4.403 3.423 13.5 4.0 23.9 24.3 2009 06 28 07 12.64 +24 14.3 4.444 3.449 10.4 3.0 24.0 24.2 2009 07 03 07 19.62 +24 04.3 4.481 3.475 7.3 2.1 24.1 24.2 2009 07 08 07 26.52 +23 53.5 4.513 3.500 4.3 1.3 24.2 24.2 2009 07 13 07 33.34 +23 41.7 4.541 3.526 2.1 0.6 24.1 2009 07 18 07 40.07 +23 29.2 4.565 3.551 3.2 0.9 24.2 2009 07 23 07 46.70 +23 15.9 4.585 3.576 6.1 1.7 24.3 2009 07 28 07 53.22 +23 02.0 4.600 3.601 9.3 2.6 24.4 2009 08 02 07 59.63 +22 47.5 4.610 3.626 12.5 3.5 24.5 2009 08 07 08 05.91 +22 32.6 4.617 3.651 15.8 4.3 24.5 2009 08 12 08 12.06 +22 17.3 4.618 3.676 19.1 5.2 24.6 2009 08 17 08 18.08 +22 01.6 4.615 3.700 22.5 6.0 24.6 2009 08 22 08 23.95 +21 45.8 4.608 3.725 25.9 6.8 24.7 2009 08 27 08 29.66 +21 29.9 4.596 3.749 29.4 7.6 24.7 2009 09 01 08 35.21 +21 14.0 4.580 3.773 32.9 8.3 24.8 2009 09 06 08 40.59 +20 58.2 4.560 3.796 36.4 9.1 24.8 2009 09 11 08 45.78 +20 42.7 4.536 3.820 40.0 9.8 24.8 2009 09 16 08 50.78 +20 27.5 4.507 3.844 43.7 10.4 24.9 2009 09 21 08 55.58 +20 12.8 4.475 3.867 47.4 11.0 24.9 2009 09 26 09 00.16 +19 58.8 4.439 3.890 51.2 11.6 24.9 2009 10 01 09 04.50 +19 45.4 4.399 3.913 55.1 12.1 24.9 2009 10 06 09 08.60 +19 33.0 4.356 3.936 59.0 12.6 24.9 2009 10 11 09 12.45 +19 21.5 4.310 3.959 63.0 13.0 24.9 2009 10 16 09 16.02 +19 11.2 4.261 3.981 67.1 13.3 24.9

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