C/2019 S4 ( Lemmon )

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Updated on January 20, 2022

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* 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)

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

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Copyright(C) Seiichi Yoshida (comet@aerith.net). All rights reserved.