C/2020 X4 ( Leonard )

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Updated on December 16, 2022

Profile Discovery Date December 14, 2020 Magnitude 20.0 mag Discoverer Gregory J. Leonard (Mount Lemmon Survey)

Orbital Elements Epoch 2020 Nov. 7.0 TT = JDT 2459160.5 T 2020 Nov. 14.28788 TT Rudenko q 5.2057495 (2000.0) P Q z +0.0232093 Peri. 139.88981 +0.69392962 +0.65166370 +/-0.0000000 Node 161.90867 -0.56351545 +0.22672914 e 0.8791783 Incl. 80.48627 +0.44823211 -0.72382893 From 100 observations 2020 Dec. 14-2021 Aug. 8, mean residual 0".6.

Magnitudes Graph m1 = 9.0 + 5 log d + 10.0 log r

The orbital elements are published on M.P.E.C. 2021-R75. The magnitudes graphs are made with Comet for Windows.