C/2020 X4 ( Leonard )

Japanese version
Home page
Updated on September 18, 2021

---------------------------------------------------------------------

* 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.

---------------------------------------------------------------------

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