MPC
CBAT
ICQ
111P/Helin-Roman-Crockett Epoch 2004 Dec. 21.0 TT = JDT 2453360.5 T 2004 Dec. 27.1442 TT Marsden q 3.473362 (2000.0) P Q n 0.1213733 Peri. 10.5657 -0.2159777 -0.9736077 a 4.040055 Node 91.9365 +0.8903584 -0.2273931 e 0.140269 Incl. 4.2328 +0.4007688 -0.0195029 P 8.12 From 65 observations 1989-1995, mean residual 0".9.Elements are also available for the current standard epoch:
111P/Helin-Roman-Crockett Epoch 2007 Apr. 10.0 TT = JDT 2454200.5 T 2004 Dec. 31.5712 TT Marsden q 3.481258 (2000.0) P Q n 0.1210625 Peri. 11.4117 -0.2297717 -0.9704443 a 4.046967 Node 91.9037 +0.8870243 -0.2400067 e 0.139786 Incl. 4.2332 +0.4004907 -0.0251913 P 8.14An 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 14 25.28 -10 13.1 3.374 4.275 149.0 7.0 20.3 22.3 2007 06 04 14 23.17 -10 07.7 3.420 4.280 143.7 8.1 20.3 22.4 2007 06 09 14 21.38 -10 04.1 3.472 4.285 138.5 9.0 20.3 22.5 2007 06 14 14 19.93 -10 02.4 3.528 4.291 133.4 9.9 20.4 22.5 2007 06 19 14 18.83 -10 02.6 3.590 4.296 128.4 10.7 20.4 22.6 2007 06 24 14 18.10 -10 04.8 3.655 4.301 123.5 11.4 20.5 22.7 2007 06 29 14 17.74 -10 08.9 3.724 4.306 118.7 12.0 20.5 22.7 2007 07 04 14 17.74 -10 14.8 3.796 4.311 114.0 12.4 20.6 22.8 2007 07 09 14 18.11 -10 22.6 3.871 4.316 109.4 12.8 20.6 22.9 2007 07 14 14 18.83 -10 32.0 3.947 4.321 104.8 13.1 20.7 22.9 2007 07 19 14 19.90 -10 43.1 4.025 4.325 100.4 13.4 20.7 23.0 2007 07 24 14 21.30 -10 55.6 4.105 4.330 96.0 13.5 20.8 23.0 2007 07 29 14 23.02 -11 09.6 4.184 4.335 91.7 13.5 20.8 23.1 2007 08 03 14 25.05 -11 24.9 4.264 4.340 87.5 13.5 20.9 23.1 2007 08 08 14 27.36 -11 41.3 4.344 4.345 83.3 13.4 20.9 23.2 2007 08 13 14 29.96 -11 58.8 4.423 4.349 79.2 13.2 21.0 23.2 2007 08 18 14 32.81 -12 17.2 4.501 4.354 75.2 13.0 21.0 23.2 2007 08 23 14 35.91 -12 36.4 4.578 4.359 71.2 12.7 21.1 23.3 2007 08 28 14 39.25 -12 56.4 4.653 4.363 67.3 12.3 21.1 23.3 2007 09 02 14 42.80 -13 16.9 4.726 4.368 63.4 11.9 21.2 23.3 2007 09 07 14 46.55 -13 37.9 4.797 4.372 59.5 11.5 21.2 23.3 2007 09 12 14 50.50 -13 59.3 4.865 4.377 55.7 10.9 21.3 23.3 2007 09 17 14 54.64 -14 21.0 4.930 4.381 51.9 10.4 21.3 23.3 2007 09 22 14 58.94 -14 42.8 4.992 4.386 48.1 9.8 21.3 23.3 2007 09 27 15 03.39 -15 04.8 5.051 4.390 44.3 9.2 21.4 23.3 2007 10 02 15 07.99 -15 26.7 5.106 4.395 40.6 8.5 21.4 23.3 2007 10 07 15 12.73 -15 48.6 5.158 4.399 36.9 7.8 21.4 23.3 2007 10 12 15 17.59 -16 10.3 5.205 4.403 33.2 7.1 21.5 23.3 2007 10 17 15 22.56 -16 31.7 5.248 4.407 29.5 6.4 21.5 23.3 2007 10 22 15 27.64 -16 52.9 5.287 4.412 25.8 5.6 21.5 23.3 2007 10 27 15 32.80 -17 13.6 5.321 4.416 22.1 4.9 21.5 23.3 2007 11 01 15 38.04 -17 33.9 5.351 4.420 18.4 4.1 21.6 23.2 2007 11 06 15 43.36 -17 53.6 5.376 4.424 14.7 3.3 21.6 23.2 2007 11 11 15 48.73 -18 12.8 5.396 4.428 11.0 2.5 21.6 23.2 2007 11 16 15 54.16 -18 31.3 5.411 4.432 7.4 1.6 21.6 23.1 2007 11 21 15 59.61 -18 49.2 5.421 4.436 3.9 0.9 21.6 23.0 2007 11 26 16 05.10 -19 06.3 5.427 4.440 1.7 0.4 21.6 23.0 2007 12 01 16 10.59 -19 22.6 5.427 4.444 4.3 1.0 21.6 23.1 2007 12 06 16 16.09 -19 38.2 5.422 4.448 7.9 1.7 21.6 23.1 2007 12 11 16 21.58 -19 52.9 5.412 4.452 11.6 2.6 21.6 23.2 2007 12 16 16 27.05 -20 06.8 5.397 4.456 15.4 3.4 21.6 23.2 2007 12 21 16 32.47 -20 19.8 5.377 4.459 19.1 4.1 21.6 23.3 2007 12 26 16 37.85 -20 31.9 5.352 4.463 22.9 4.9 21.6 23.3 2007 12 31 16 43.16 -20 43.1 5.323 4.467 26.8 5.7 21.6 23.3 2008 01 05 16 48.40 -20 53.5 5.288 4.470 30.6 6.4 21.6 23.4 2008 01 10 16 53.54 -21 03.0 5.249 4.474 34.5 7.2 21.6 23.4 2008 01 15 16 58.58 -21 11.7 5.206 4.477 38.4 7.8 21.6 23.4 2008 01 20 17 03.49 -21 19.5 5.159 4.481 42.3 8.5 21.6 23.4 2008 01 25 17 08.26 -21 26.5 5.107 4.484 46.3 9.1 21.6 23.4 2008 01 30 17 12.87 -21 32.8 5.052 4.488 50.3 9.7 21.6 23.4 2008 02 04 17 17.31 -21 38.3 4.994 4.491 54.4 10.3 21.5 23.4 2008 02 09 17 21.56 -21 43.2 4.932 4.495 58.4 10.8 21.5 23.4 2008 02 14 17 25.60 -21 47.4 4.867 4.498 62.5 11.2 21.5 23.4 2008 02 19 17 29.42 -21 51.0 4.800 4.501 66.7 11.6 21.5 23.4 2008 02 24 17 32.98 -21 54.1 4.730 4.504 70.9 12.0 21.4 23.4 2008 02 29 17 36.29 -21 56.7 4.658 4.508 75.2 12.3 21.4 23.3 2008 03 05 17 39.32 -21 59.0 4.585 4.511 79.5 12.5 21.4 23.3 2008 03 10 17 42.05 -22 00.8 4.511 4.514 83.8 12.6 21.4 23.3 2008 03 15 17 44.45 -22 02.4 4.436 4.517 88.3 12.7 21.3 23.3 2008 03 20 17 46.52 -22 03.8 4.361 4.520 92.8 12.7 21.3 23.2 2008 03 25 17 48.24 -22 05.0 4.286 4.523 97.3 12.6 21.3 23.2 2008 03 30 17 49.60 -22 06.1 4.212 4.526 102.0 12.5 21.2 23.1 2008 04 04 17 50.57 -22 07.2 4.139 4.529 106.7 12.2 21.2 23.1 2008 04 09 17 51.15 -22 08.2 4.068 4.531 111.4 11.9 21.2 23.0 2008 04 14 17 51.34 -22 09.1 4.000 4.534 116.3 11.4 21.1 23.0 2008 04 19 17 51.11 -22 10.1 3.934 4.537 121.3 10.9 21.1 22.9 2008 04 24 17 50.49 -22 11.1 3.872 4.540 126.3 10.3 21.1 22.9 2008 04 29 17 49.47 -22 12.2 3.813 4.542 131.4 9.6 21.1 22.8 2008 05 04 17 48.06 -22 13.2 3.760 4.545 136.5 8.8 21.0 22.8 2008 05 09 17 46.28 -22 14.2 3.711 4.547 141.8 7.9 21.0 22.7 2008 05 14 17 44.16 -22 15.1 3.668 4.550 147.1 6.9 21.0 22.6 2008 05 19 17 41.72 -22 15.9 3.631 4.552 152.5 5.9 21.0 22.6 2008 05 24 17 39.02 -22 16.7 3.601 4.555 157.9 4.8 21.0 22.5 2008 05 29 17 36.08 -22 17.2 3.577 4.557 163.4 3.6 20.9 22.4 2008 06 03 17 32.97 -22 17.7 3.560 4.560 168.9 2.5 20.9 22.3 2008 06 08 17 29.74 -22 17.9 3.551 4.562 174.4 1.2 20.9 22.2 2008 06 13 17 26.45 -22 18.0 3.549 4.564 179.1 0.2 20.9 22.1 2008 06 18 17 23.17 -22 17.9 3.554 4.566 174.4 1.2 20.9 22.2 2008 06 23 17 19.95 -22 17.7 3.567 4.569 168.9 2.5 21.0 22.3 2008 06 28 17 16.86 -22 17.5 3.587 4.571 163.5 3.6 21.0 22.4 2008 07 03 17 13.93 -22 17.4 3.614 4.573 158.0 4.8 21.0 22.5This 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.