C/2007 Q3 (Siding Spring)
Orbital Elements
The following orbital elements are taken from MPC 61437:C/2007 Q3 (Siding Spring) Epoch 2009 Oct. 16.0 TT = JDT 2455120.5 T 2009 Oct. 7.2729 TT MPC q 2.251656 (2000.0) P Q z -0.000108 Peri. 2.0914 -0.8679425 -0.1782427 +/-0.000037 Node 149.4132 +0.4414338 -0.7046200 e 1.000243 Incl. 65.6503 +0.2276224 +0.6868334 From 98 observations 2007 Aug. 25-Dec. 17, mean residual 0".4.Elements are also available for the current standard epoch:
C/2007 Q3 (Siding Spring) Epoch 2009 June 18.0 TT = JDT 2455000.5 T 2009 Oct. 7.2885 TT MPC q 2.251609 (2000.0) P Q z -0.000083 Peri. 2.0977 -0.8679628 -0.1781462 +/-0.000037 Node 149.4133 +0.4413552 -0.7046681 e 1.000186 Incl. 65.6504 +0.2276974 +0.6868091An 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 06 08 07 17.12 -08 06.3 3.257 2.636 44.8 15.8 11.3 2009 06 13 07 25.64 -07 00.2 3.270 2.608 42.2 15.2 11.2 2009 06 18 07 34.27 -05 57.4 3.282 2.580 39.5 14.5 11.2 2009 06 23 07 43.01 -04 57.9 3.293 2.554 36.8 13.8 11.2 2009 06 28 07 51.85 -04 01.7 3.304 2.528 34.2 13.1 11.1 2009 07 03 08 00.76 -03 08.6 3.313 2.503 31.5 12.3 11.1 2009 07 08 08 09.75 -02 18.5 3.320 2.479 28.9 11.4 11.0 2009 07 13 08 18.80 -01 31.3 3.326 2.456 26.3 10.6 11.0 2009 07 18 08 27.91 -00 46.7 3.330 2.435 23.8 9.7 11.0 2009 07 23 08 37.07 -00 04.8 3.332 2.414 21.3 8.8 10.9 2009 07 28 08 46.28 +00 34.8 3.332 2.394 18.9 7.9 10.9 2009 08 02 08 55.53 +01 12.2 3.329 2.375 16.7 7.1 10.9 2009 08 07 09 04.81 +01 47.6 3.325 2.358 14.7 6.3 10.8 2009 08 12 09 14.13 +02 21.2 3.318 2.342 13.1 5.6 10.8 2009 08 17 09 23.47 +02 53.3 3.308 2.327 11.9 5.2 10.8 2009 08 22 09 32.85 +03 24.0 3.296 2.313 11.5 5.0 10.7 2009 08 27 09 42.26 +03 53.5 3.281 2.301 11.8 5.1 10.7 2009 09 01 09 51.68 +04 22.3 3.263 2.290 12.8 5.6 10.7 2009 09 06 10 01.13 +04 50.4 3.242 2.280 14.5 6.3 10.6 2009 09 11 10 10.61 +05 18.2 3.219 2.272 16.5 7.2 10.6 2009 09 16 10 20.11 +05 45.9 3.193 2.265 18.9 8.3 10.6 2009 09 21 10 29.64 +06 13.8 3.164 2.259 21.4 9.3 10.5 2009 09 26 10 39.19 +06 42.3 3.133 2.255 24.1 10.5 10.5 2009 10 01 10 48.76 +07 11.6 3.099 2.253 27.0 11.6 10.5 2009 10 06 10 58.36 +07 42.1 3.062 2.252 29.9 12.8 10.5 2009 10 11 11 07.99 +08 14.2 3.024 2.252 32.9 13.9 10.4 2009 10 16 11 17.66 +08 48.1 2.983 2.254 36.0 15.1 10.4 2009 10 21 11 27.35 +09 24.2 2.940 2.257 39.1 16.2 10.4 2009 10 26 11 37.06 +10 03.0 2.896 2.262 42.3 17.2 10.4 2009 10 31 11 46.80 +10 44.8 2.850 2.268 45.5 18.2 10.3 2009 11 05 11 56.57 +11 30.1 2.803 2.276 48.8 19.1 10.3 2009 11 10 12 06.36 +12 19.1 2.755 2.285 52.1 20.0 10.3 2009 11 15 12 16.17 +13 12.4 2.707 2.295 55.4 20.8 10.3 2009 11 20 12 25.99 +14 10.3 2.658 2.307 58.8 21.5 10.3 2009 11 25 12 35.81 +15 13.3 2.610 2.320 62.2 22.1 10.2 2009 11 30 12 45.63 +16 21.7 2.562 2.334 65.6 22.6 10.2 2009 12 05 12 55.44 +17 35.7 2.515 2.349 69.0 23.1 10.2 2009 12 10 13 05.22 +18 55.6 2.470 2.366 72.4 23.4 10.2 2009 12 15 13 14.96 +20 21.7 2.426 2.384 75.8 23.6 10.2 2009 12 20 13 24.64 +21 54.1 2.385 2.403 79.2 23.7 10.2 2009 12 25 13 34.22 +23 32.7 2.347 2.424 82.5 23.7 10.2 2009 12 30 13 43.69 +25 17.4 2.312 2.445 85.8 23.6 10.2 2010 01 04 13 53.02 +27 07.9 2.281 2.467 88.9 23.5 10.2 2010 01 09 14 02.18 +29 03.7 2.254 2.491 92.0 23.2 10.2 2010 01 14 14 11.12 +31 04.5 2.232 2.515 94.9 22.9 10.2 2010 01 19 14 19.80 +33 09.3 2.214 2.540 97.7 22.6 10.3 2010 01 24 14 28.18 +35 17.3 2.202 2.567 100.2 22.2 10.3 2010 01 29 14 36.19 +37 27.5 2.195 2.594 102.6 21.8 10.3 2010 02 03 14 43.80 +39 38.8 2.193 2.621 104.6 21.3 10.4 2010 02 08 14 50.93 +41 50.1 2.197 2.650 106.4 20.9 10.4 2010 02 13 14 57.53 +44 00.3 2.206 2.679 107.9 20.5 10.5 2010 02 18 15 03.52 +46 08.0 2.221 2.709 109.1 20.2 10.6 2010 02 23 15 08.84 +48 12.2 2.240 2.740 109.9 19.8 10.6 2010 02 28 15 13.43 +50 11.9 2.265 2.771 110.5 19.6 10.7 2010 03 05 15 17.23 +52 06.0 2.294 2.803 110.8 19.3 10.8 2010 03 10 15 20.18 +53 53.7 2.328 2.836 110.7 19.1 10.9 2010 03 15 15 22.21 +55 34.3 2.366 2.869 110.5 18.9 10.9 2010 03 20 15 23.30 +57 07.0 2.407 2.903 110.0 18.8 11.0 2010 03 25 15 23.44 +58 31.2 2.452 2.937 109.3 18.7 11.1 2010 03 30 15 22.63 +59 46.3 2.499 2.971 108.5 18.6 11.2 2010 04 04 15 20.92 +60 52.2 2.550 3.006 107.5 18.5 11.3 2010 04 09 15 18.36 +61 48.4 2.602 3.041 106.4 18.4 11.4 2010 04 14 15 15.06 +62 34.7 2.657 3.077 105.3 18.3 11.5 2010 04 19 15 11.15 +63 11.1 2.713 3.113 104.0 18.2 11.6 2010 04 24 15 06.79 +63 37.5 2.771 3.150 102.8 18.1 11.7 2010 04 29 15 02.19 +63 54.3 2.830 3.186 101.4 18.0 11.8 2010 05 04 14 57.50 +64 01.8 2.890 3.223 100.1 17.9 11.9 2010 05 09 14 52.91 +64 00.3 2.951 3.261 98.7 17.8 12.0 2010 05 14 14 48.59 +63 50.5 3.013 3.298 97.4 17.7 12.1 2010 05 19 14 44.66 +63 32.8 3.075 3.336 96.0 17.6 12.2 2010 05 24 14 41.26 +63 08.1 3.137 3.374 94.7 17.4 12.3 2010 05 29 14 38.45 +62 37.0 3.200 3.413 93.4 17.2 12.4 2010 06 03 14 36.27 +62 00.2 3.263 3.451 92.0 17.1 12.4 2010 06 08 14 34.75 +61 18.4 3.326 3.490 90.7 16.9 12.5 2010 06 13 14 33.88 +60 32.2 3.389 3.529 89.4 16.7 12.6 2010 06 18 14 33.66 +59 42.2 3.453 3.568 88.2 16.5 12.7 2010 06 23 14 34.07 +58 49.0 3.516 3.607 86.9 16.3 12.8 2010 06 28 14 35.05 +57 53.2 3.579 3.646 85.7 16.1 12.9 2010 07 03 14 36.58 +56 55.1 3.642 3.686 84.5 15.9 13.0 2010 07 08 14 38.61 +55 55.1 3.705 3.725 83.3 15.7 13.1 2010 07 13 14 41.10 +54 53.8 3.768 3.765 82.1 15.5 13.1This 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.
