C/2008 N1 (Holmes)
Orbital Elements
The following orbital elements are taken from MPC 65935:C/2008 N1 (Holmes) Epoch 2009 Sept. 6.0 TT = JDT 2455080.5 T 2009 Sept. 25.8889 TT MPC q 2.783591 (2000.0) P Q z +0.001010 Peri. 100.8147 -0.2061137 -0.9777183 +/-0.000002 Node 357.4723 -0.7328828 +0.1811941 e 0.997189 Incl. 115.5205 +0.6483825 -0.1059977 From 491 observations 2008 July 1-2009 Apr. 24, mean residual 0".5.Elements are also available for the current standard epoch:
C/2008 N1 (Holmes) Epoch 2010 Jan. 4.0 TT = JDT 2455200.5 T 2009 Sept. 25.9042 TT MPC q 2.783608 (2000.0) P Q z +0.000962 Peri. 100.8185 -0.2061845 -0.9777029 +/-0.000002 Node 357.4716 -0.7328725 +0.1812554 e 0.997322 Incl. 115.5209 +0.6483717 -0.1060351An 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 15 32.14 +26 41.1 3.417 2.801 44.8 14.5 16.1 2009 10 31 15 33.11 +25 44.1 3.443 2.807 43.5 14.1 16.2 2009 11 05 15 34.21 +24 52.2 3.463 2.814 42.5 13.8 16.2 2009 11 10 15 35.40 +24 05.3 3.478 2.822 42.0 13.6 16.2 2009 11 15 15 36.65 +23 23.4 3.488 2.831 42.0 13.5 16.2 2009 11 20 15 37.91 +22 46.3 3.491 2.841 42.4 13.6 16.2 2009 11 25 15 39.16 +22 14.1 3.488 2.851 43.3 13.7 16.3 2009 11 30 15 40.35 +21 46.6 3.479 2.863 44.7 14.0 16.3 2009 12 05 15 41.44 +21 23.7 3.464 2.875 46.4 14.4 16.3 2009 12 10 15 42.42 +21 05.6 3.443 2.888 48.6 14.8 16.3 2009 12 15 15 43.23 +20 52.1 3.417 2.902 51.2 15.3 16.3 2009 12 20 15 43.83 +20 43.3 3.384 2.917 54.0 15.8 16.3 2009 12 25 15 44.18 +20 39.2 3.347 2.933 57.2 16.4 16.3 2009 12 30 15 44.23 +20 39.9 3.304 2.949 60.6 16.9 16.3 2010 01 04 15 43.94 +20 45.2 3.257 2.966 64.3 17.4 16.3 2010 01 09 15 43.26 +20 55.2 3.206 2.984 68.2 17.8 16.3 2010 01 14 15 42.11 +21 10.0 3.152 3.003 72.3 18.2 16.3 2010 01 19 15 40.45 +21 29.5 3.094 3.022 76.6 18.5 16.3 2010 01 24 15 38.20 +21 53.5 3.034 3.042 81.1 18.6 16.2 2010 01 29 15 35.29 +22 21.8 2.973 3.063 85.8 18.7 16.2 2010 02 03 15 31.66 +22 54.3 2.911 3.084 90.6 18.6 16.2 2010 02 08 15 27.22 +23 30.5 2.850 3.106 95.6 18.4 16.2 2010 02 13 15 21.91 +24 10.0 2.790 3.128 100.7 18.1 16.2 2010 02 18 15 15.65 +24 51.9 2.733 3.151 106.0 17.5 16.2 2010 02 23 15 08.39 +25 35.2 2.679 3.175 111.3 16.9 16.2 2010 02 28 15 00.09 +26 18.8 2.631 3.199 116.6 16.1 16.2 2010 03 05 14 50.74 +27 01.3 2.588 3.224 121.9 15.1 16.1 2010 03 10 14 40.38 +27 41.0 2.553 3.249 127.0 14.1 16.2 2010 03 15 14 29.07 +28 16.3 2.527 3.275 131.8 13.1 16.2 2010 03 20 14 16.93 +28 45.2 2.511 3.301 136.1 12.1 16.2 2010 03 25 14 04.15 +29 06.2 2.504 3.328 139.7 11.2 16.2 2010 03 30 13 50.96 +29 17.9 2.510 3.355 142.2 10.5 16.3 2010 04 04 13 37.60 +29 19.6 2.527 3.383 143.4 10.1 16.3 2010 04 09 13 24.34 +29 11.0 2.555 3.411 143.2 10.1 16.4 2010 04 14 13 11.45 +28 52.2 2.595 3.439 141.7 10.4 16.4 2010 04 19 12 59.15 +28 24.0 2.647 3.468 138.9 11.0 16.5 2010 04 24 12 47.62 +27 47.5 2.710 3.497 135.3 11.7 16.6 2010 04 29 12 37.01 +27 04.0 2.782 3.526 131.1 12.4 16.7 2010 05 04 12 27.38 +26 15.0 2.863 3.556 126.5 13.2 16.8 2010 05 09 12 18.76 +25 21.8 2.952 3.586 121.6 13.9 16.9 2010 05 14 12 11.16 +24 25.6 3.049 3.617 116.7 14.5 17.0 2010 05 19 12 04.54 +23 27.5 3.151 3.648 111.7 14.9 17.1 2010 05 24 11 58.85 +22 28.2 3.259 3.679 106.7 15.3 17.2 2010 05 29 11 54.02 +21 28.7 3.370 3.710 101.7 15.5 17.3 2010 06 03 11 50.00 +20 29.2 3.484 3.742 96.8 15.6 17.4 2010 06 08 11 46.69 +19 30.3 3.601 3.774 91.9 15.6 17.5 2010 06 13 11 44.05 +18 32.2 3.718 3.806 87.2 15.5 17.7 2010 06 18 11 42.01 +17 35.0 3.837 3.838 82.5 15.2 17.8 2010 06 23 11 40.50 +16 38.8 3.955 3.871 77.9 14.9 17.9 2010 06 28 11 39.46 +15 43.9 4.072 3.904 73.3 14.4 18.0 2010 07 03 11 38.84 +14 50.0 4.188 3.937 68.8 13.9 18.1 2010 07 08 11 38.61 +13 57.3 4.302 3.970 64.4 13.4 18.2 2010 07 13 11 38.70 +13 05.7 4.414 4.003 60.0 12.7 18.2 2010 07 18 11 39.10 +12 15.2 4.522 4.037 55.7 12.0 18.3 2010 07 23 11 39.75 +11 25.7 4.627 4.071 51.4 11.2 18.4 2010 07 28 11 40.63 +10 37.3 4.727 4.105 47.1 10.4 18.5 2010 08 02 11 41.71 +09 49.7 4.824 4.139 42.9 9.6 18.6 2010 08 07 11 42.97 +09 03.1 4.916 4.173 38.7 8.7 18.7 2010 08 12 11 44.37 +08 17.3 5.003 4.207 34.5 7.8 18.7 2010 08 17 11 45.90 +07 32.3 5.085 4.242 30.4 6.9 18.8 2010 08 22 11 47.53 +06 48.1 5.161 4.277 26.2 6.0 18.9 2010 08 27 11 49.24 +06 04.6 5.231 4.311 22.1 5.1 18.9 2010 09 01 11 51.02 +05 21.8 5.295 4.346 17.9 4.1 19.0 2010 09 06 11 52.85 +04 39.8 5.354 4.381 13.8 3.1 19.1 2010 09 11 11 54.71 +03 58.4 5.405 4.416 9.7 2.2 19.1 2010 09 16 11 56.59 +03 17.6 5.451 4.451 5.7 1.3 19.2 2010 09 21 11 58.46 +02 37.5 5.490 4.487 2.4 0.5 19.2 2010 09 26 12 00.32 +01 58.1 5.522 4.522 3.8 0.9 19.3 2010 10 01 12 02.14 +01 19.3 5.548 4.558 7.7 1.7 19.3 2010 10 06 12 03.92 +00 41.1 5.567 4.593 11.9 2.6 19.3 2010 10 11 12 05.63 +00 03.6 5.579 4.629 16.2 3.4 19.4 2010 10 16 12 07.25 -00 33.2 5.585 4.664 20.5 4.3 19.4 2010 10 21 12 08.78 -01 09.4 5.585 4.700 24.9 5.1 19.5 2010 10 26 12 10.20 -01 44.8 5.578 4.736 29.3 5.9 19.5 2010 10 31 12 11.48 -02 19.5 5.565 4.772 33.8 6.6 19.5 2010 11 05 12 12.61 -02 53.5 5.547 4.808 38.3 7.3 19.5 2010 11 10 12 13.58 -03 26.6 5.522 4.844 42.9 8.0 19.6 2010 11 15 12 14.35 -03 58.9 5.493 4.880 47.5 8.6 19.6 2010 11 20 12 14.92 -04 30.4 5.458 4.916 52.2 9.1 19.6 2010 11 25 12 15.26 -05 00.8 5.420 4.952 57.0 9.6 19.6 2010 11 30 12 15.36 -05 30.3 5.377 4.988 61.9 10.0 19.6This 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.
