P/2009 QG31 (La Sagra)
Orbital Elements
The following orbital elements are taken from MPC 67413:P/2009 QG31 (La Sagra) Epoch 2009 Oct. 16.0 TT = JDT 2455120.5 T 2009 Oct. 10.4297 TT MPC q 2.147850 (2000.0) P Q n 0.1458511 Peri. 5.9292 +0.9906249 +0.1349974 a 3.574344 Node 346.2591 -0.1286799 +0.8706557 e 0.399092 Incl. 5.0554 -0.0458682 +0.4730057 P 6.76 From 116 observations 2009 Aug. 16-Oct. 25, mean residual 0".5.Elements are also available for the current standard epoch:
P/2009 QG31 (La Sagra) Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 T 2009 Oct. 10.3996 TT MPC q 2.147831 (2000.0) P Q n 0.1459212 Peri. 5.9191 +0.9906010 +0.1351724 a 3.573198 Node 346.2592 -0.1288337 +0.8706328 e 0.398905 Incl. 5.0554 -0.0459518 +0.4729979 P 6.75An 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 22 24.77 -08 17.7 1.449 2.151 122.3 23.0 18.1 2009 10 31 22 27.69 -07 49.2 1.499 2.153 118.2 24.0 18.2 2009 11 05 22 31.23 -07 17.9 1.551 2.156 114.2 24.8 18.3 2009 11 10 22 35.36 -06 43.8 1.606 2.160 110.3 25.5 18.4 2009 11 15 22 40.02 -06 07.2 1.663 2.164 106.6 26.0 18.5 2009 11 20 22 45.19 -05 28.1 1.721 2.169 103.0 26.4 18.5 2009 11 25 22 50.80 -04 46.6 1.781 2.174 99.5 26.6 18.6 2009 11 30 22 56.82 -04 03.0 1.842 2.180 96.1 26.7 18.7 2009 12 05 23 03.21 -03 17.3 1.904 2.187 92.8 26.8 18.8 2009 12 10 23 09.91 -02 29.8 1.967 2.194 89.6 26.7 18.9 2009 12 15 23 16.92 -01 40.5 2.031 2.202 86.4 26.5 19.0 2009 12 20 23 24.18 -00 49.7 2.096 2.210 83.4 26.2 19.1 2009 12 25 23 31.69 +00 02.6 2.161 2.219 80.3 25.9 19.1 2009 12 30 23 39.40 +00 56.1 2.226 2.228 77.4 25.5 19.2 2010 01 04 23 47.30 +01 50.6 2.291 2.238 74.5 25.0 19.3 2010 01 09 23 55.37 +02 45.9 2.356 2.248 71.6 24.5 19.4 2010 01 14 00 03.59 +03 42.1 2.421 2.259 68.8 23.9 19.5 2010 01 19 00 11.95 +04 38.8 2.486 2.271 66.0 23.3 19.5 2010 01 24 00 20.44 +05 35.9 2.550 2.282 63.2 22.6 19.6 2010 01 29 00 29.04 +06 33.2 2.614 2.295 60.5 21.9 19.7 2010 02 03 00 37.73 +07 30.5 2.677 2.307 57.8 21.2 19.8 2010 02 08 00 46.52 +08 27.8 2.739 2.321 55.1 20.4 19.8 2010 02 13 00 55.39 +09 24.8 2.801 2.334 52.4 19.6 19.9 2010 02 18 01 04.35 +10 21.4 2.861 2.348 49.8 18.8 20.0 2010 02 23 01 13.37 +11 17.5 2.921 2.362 47.2 17.9 20.1 2010 02 28 01 22.46 +12 12.9 2.979 2.377 44.6 17.0 20.1 2010 03 05 01 31.61 +13 07.4 3.036 2.392 42.0 16.1 20.2 2010 03 10 01 40.82 +14 01.0 3.091 2.407 39.4 15.2 20.3 2010 03 15 01 50.08 +14 53.5 3.145 2.423 36.8 14.2 20.3 2010 03 20 01 59.38 +15 44.8 3.197 2.439 34.3 13.3 20.4 2010 03 25 02 08.74 +16 34.7 3.247 2.455 31.7 12.3 20.5 2010 03 30 02 18.12 +17 23.3 3.295 2.472 29.2 11.4 20.5 2010 04 04 02 27.54 +18 10.3 3.341 2.488 26.6 10.4 20.6 2010 04 09 02 36.99 +18 55.7 3.386 2.506 24.1 9.4 20.6 2010 04 14 02 46.47 +19 39.4 3.428 2.523 21.6 8.4 20.7 2010 04 19 02 55.97 +20 21.3 3.468 2.540 19.1 7.4 20.7 2010 04 24 03 05.48 +21 01.4 3.505 2.558 16.6 6.4 20.8 2010 04 29 03 14.99 +21 39.6 3.541 2.576 14.1 5.5 20.9 2010 05 04 03 24.51 +22 15.8 3.573 2.594 11.7 4.5 20.9 2010 05 09 03 34.02 +22 50.1 3.603 2.612 9.2 3.6 21.0 2010 05 14 03 43.52 +23 22.3 3.631 2.631 6.9 2.7 21.0 2010 05 19 03 53.00 +23 52.4 3.656 2.649 4.9 1.9 21.0 2010 05 24 04 02.44 +24 20.5 3.678 2.668 3.7 1.4 21.1 2010 05 29 04 11.85 +24 46.5 3.697 2.687 4.0 1.5 21.1 2010 06 03 04 21.22 +25 10.4 3.713 2.706 5.7 2.1 21.2 2010 06 08 04 30.52 +25 32.3 3.726 2.725 8.0 3.0 21.2 2010 06 13 04 39.77 +25 52.1 3.736 2.744 10.4 3.8 21.2 2010 06 18 04 48.93 +26 09.9 3.744 2.763 13.0 4.7 21.3 2010 06 23 04 58.01 +26 25.7 3.748 2.782 15.6 5.6 21.3 2010 06 28 05 06.99 +26 39.6 3.749 2.802 18.3 6.5 21.3 2010 07 03 05 15.86 +26 51.6 3.747 2.821 21.0 7.4 21.4 2010 07 08 05 24.61 +27 01.8 3.741 2.841 23.8 8.3 21.4 2010 07 13 05 33.23 +27 10.3 3.733 2.861 26.6 9.2 21.4 2010 07 18 05 41.70 +27 17.1 3.721 2.880 29.5 10.0 21.4 2010 07 23 05 50.02 +27 22.3 3.707 2.900 32.4 10.8 21.5 2010 07 28 05 58.16 +27 26.2 3.689 2.920 35.3 11.6 21.5 2010 08 02 06 06.12 +27 28.6 3.668 2.939 38.3 12.4 21.5 2010 08 07 06 13.88 +27 29.8 3.644 2.959 41.3 13.1 21.5 2010 08 12 06 21.43 +27 29.9 3.617 2.979 44.4 13.8 21.5 2010 08 17 06 28.75 +27 29.1 3.587 2.999 47.6 14.4 21.5 2010 08 22 06 35.83 +27 27.4 3.554 3.018 50.8 15.1 21.6 2010 08 27 06 42.64 +27 25.0 3.518 3.038 54.1 15.6 21.6 2010 09 01 06 49.19 +27 22.0 3.480 3.058 57.5 16.2 21.6 2010 09 06 06 55.44 +27 18.7 3.439 3.078 60.9 16.6 21.6 2010 09 11 07 01.37 +27 15.1 3.395 3.098 64.5 17.1 21.6 2010 09 16 07 06.97 +27 11.5 3.350 3.117 68.1 17.4 21.6 2010 09 21 07 12.22 +27 08.0 3.303 3.137 71.8 17.7 21.6 2010 09 26 07 17.09 +27 04.8 3.254 3.157 75.6 17.9 21.6 2010 10 01 07 21.56 +27 02.0 3.203 3.176 79.5 18.1 21.5 2010 10 06 07 25.61 +26 59.8 3.151 3.196 83.5 18.1 21.5 2010 10 11 07 29.21 +26 58.4 3.099 3.215 87.6 18.1 21.5 2010 10 16 07 32.32 +26 57.9 3.046 3.235 91.8 17.9 21.5 2010 10 21 07 34.94 +26 58.4 2.993 3.254 96.2 17.7 21.5 2010 10 26 07 37.03 +27 00.1 2.940 3.274 100.7 17.4 21.5 2010 10 31 07 38.57 +27 02.9 2.888 3.293 105.3 16.9 21.5 2010 11 05 07 39.53 +27 07.0 2.838 3.312 110.1 16.3 21.5 2010 11 10 07 39.90 +27 12.4 2.789 3.331 115.0 15.6 21.5 2010 11 15 07 39.66 +27 19.0 2.743 3.351 120.1 14.8 21.4 2010 11 20 07 38.81 +27 26.7 2.701 3.370 125.3 13.8 21.4 2010 11 25 07 37.35 +27 35.3 2.662 3.389 130.6 12.8 21.4 2010 11 30 07 35.29 +27 44.7 2.627 3.408 136.1 11.6 21.4This 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.
