C/2021 U4 ( Leonard )

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Updated on December 16, 2022

Profile Discovery Date October 31, 2021 Magnitude 19.8 mag Discoverer G. J. Leonard (Mt. Lemmon)

Orbital Elements Epoch 2022 Jan. 21.0 TT = JDT 2459600.5 T 2021 Dec. 21.94327 TT Rudenko q 1.7874266 (2000.0) P Q z +0.0222730 Peri. 237.27958 +0.91534466 +0.02651560 +/-0.0000817 Node 241.80509 +0.26506298 -0.79083207 e 0.9601887 Incl. 152.87773 -0.30312666 -0.61145855 From 36 observations 2021 Oct. 7-Nov. 8, mean residual 0".3.

Magnitudes Graph m1 = 17.0 + 5 log d + 10.0 log r

The orbital elements are published on M.P.E.C. 2021-W31. The magnitudes graphs are made with Comet for Windows.