C/2015 X4 ( Elenin )

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Updated on March 3, 2018

Profile Discovery Date December 3, 2015 Magnitude 18.2 mag Discoverer Leonid Elenin (ISON-NM observatory near Mayhill, NM, USA) Pictures

Orbital Elements Epoch 2015 Oct. 25.0 TT = JDT 2457320.5 T 2015 Nov. 3.43941 TT MPCW q 3.3946625 (2000.0) P Q n 0.01275733 Peri. 176.32294 +0.18326886 -0.85314153 a 18.1396745 Node 262.63572 +0.88891317 +0.35599246 e 0.8128598 Incl. 29.50441 +0.41981650 -0.38133830 P 77.26 From 588 observations 2014 Dec. 22-2017 Mar. 24, mean residual 0".4.

Finding Charts

Magnitudes Graph m1 = 3.0 + 5 log d + 20.0 log r(t - 200)

The orbital elements are published on M.P.E.C. 2018-D91. The charts are made with StellaNavigator Ver.8 (AstroArts). The magnitudes graphs are made with Comet for Windows.