C/2019 S4 ( Lemmon )

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Updated on January 20, 2022

Profile Discovery Date September 19, 2019 Magnitude 21.4 mag Discoverer D. Rankin (Mount Lemmon Survey) Pictures

Orbital Elements Epoch 2020 Apr. 21.0 TT = JDT 2458960.5 T 2020 Apr. 7.94189 TT Rudenko q 3.4417356 (2000.0) P Q z +0.0041418 Peri. 71.35547 +0.17417490 -0.41759275 +/-0.0000011 Node 63.16899 -0.12879428 -0.90750830 e 0.9857452 Incl. 92.02501 +0.97625567 -0.04522145 From 260 observations 2019 Sept. 17-2021 June 3, mean residual 0".5.

Magnitudes Graph m1 = 1.7 + 5 log d + 25.0 log r(t - 100)

The orbital elements are published on M.P.E.C. 2021-S45. The magnitudes graphs are made with Comet for Windows.