C/2013 A1 ( Siding Spring )

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Updated on March 3, 2018

Profile Discovery Date January 3, 2013 Magnitude 18.6 mag Discoverer Robert H. McNaught (Siding Spring) Pictures

Orbital Elements Epoch 2014 Oct. 30.0 TT = JDT 2456960.5 T 2014 Oct. 25.30088 TT MPCW q 1.3987161 (2000.0) P Q z -0.0002738 Peri. 2.42176 +0.49141015 -0.56132756 Node 300.97675 -0.81154803 -0.57261424 e 1.0003829 Incl. 129.04277 -0.31607887 +0.59751511 From 3037 observations 2012 Oct. 4-2017 Jan. 27, mean residual 0".6. Nongravitational parameters A1 = +2.04, A2 = -0.2924.

Finding Charts

Magnitudes Graph m1 = 8.8 + 5 log d + 6.0 log r(t + 40) [ , 17] ( - 2014 Nov. 11) m1 = 5.0 + 5 log d + 18.0 log r [ 17,220] (2014 Nov. 11 - 2015 June 2) m1 = 14.0 + 5 log d + 0.0 log r [220,480] (2015 June 2 - 2016 Feb. 17) m1 = 6.5 + 5 log d + 10.0 log r [480, ] (2016 Feb. 17 - )

The orbital elements are published on M.P.E.C. 2017-E59. The charts are made with StellaNavigator Ver.8 (AstroArts). The magnitudes graphs are made with Comet for Windows.