C/2018 EF9 ( Lemmon )

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Updated on September 23, 2018

Profile Discovery Date March 9, 2018 Magnitude 20.7 mag Discoverer A. R. Gibbs (Mount Lemmon) Pictures

Orbital Elements Epoch 2018 June 11.0 TT = JDT 2458280.5 T 2018 May 23.13007 TT MPCW q 1.5566299 (2000.0) P Q z +0.0015592 Peri. 72.61780 -0.30764081 +0.94276858 +/-0.0000044 Node 172.57784 -0.42286504 -0.25656446 e 0.9975729 Incl. 84.69430 +0.85237450 +0.21298378 From 170 observations 2018 Mar. 9-Sept. 11, mean residual 0".6.

Finding Charts

Magnitudes Graph m1 = 17.0 + 5 log d + 10.0 log r [ ,-31] ( - 2018 Apr. 22) m1 = -81 + 5 log d + 480 log r [-31, 31] (2018 Apr. 22 - 2018 June 23) m1 = 17.0 + 5 log d + 10.0 log r [ 31, ] (2018 June 23 - )

The orbital elements are published on M.P.E.C. 2018-S50. The magnitudes graphs are made with Comet for Windows.