C/2009 R1 ( McNaught )

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Updated on August 25, 2010

Profile Discovery Date September 9, 2009 Magnitude 17.3 mag Discoverer R. H. McNaught (Siding Spring) Pictures

Orbital Elements The following orbital elements are taken from MPC 68902: Epoch 2010 June 13.0 TT = JDT 2455360.5 T 2010 July 2.6852 TT MPC q 0.405037 (2000.0) P Q z -0.000824 Peri. 130.7014 -0.4149301 -0.6912649 +/-0.000007 Node 322.6216 +0.1933677 +0.5683588 e 1.000334 Incl. 77.0332 +0.8890680 -0.4462300 From 130 observations 2009 July 20-Dec. 29, mean residual 0".5.

Finding Charts

Magnitudes Graph m1 = 6.5 + 5 log d + 12.0 log r [ ,-24] ( - 2010 June 8) m1 = 5.0 + 5 log d + 1.0 log r [-24, 24] (2010 June 8 - 2010 July 26) m1 = 6.5 + 5 log d + 12.0 log r [ 24, ] (2010 July 26 - ) * Gray curve is: m1 = 6.5 + 5 log d + 12.0 log r

The orbital elements are published at the MPC Ephemerides and Orbital Elements. The charts are made with StellaNavigator Ver.8 (AstroArts). The magnitudes graphs are made with Comet for Windows.