C/2021 D2 ( ZTF )

Japanese version
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Updated on January 20, 2022

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* Profile

Discovery Date February 19, 2021
Magnitude 19.5 mag
Discoverer Zwicky Transient Facility

* Pictures

* Orbital Elements

Epoch 2022 Jan. 21.0 TT = JDT 2459600.5
T 2022 Feb. 3.98280 TT                                  Rudenko
q   2.9462889            (2000.0)            P               Q
z  -0.0004802      Peri.  125.03025     -0.26330096     -0.52769099
 +/-0.0000003      Node   305.67850     +0.15104914     +0.80426221
e   1.0014149      Incl.   83.83070     +0.95281518     -0.27332128
From 541 observations 2021 Feb. 19-Dec. 17, mean residual 0".7.

* Finding Charts

* Magnitudes Graph

        m1 = 10.0 + 5 log d + 10.0 log r(t + 200)

        * Gray curve is:  m1 = 8.7 + 5 log d + 10.0 log r

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The orbital elements are published on M.P.E.C. 2022-A21.
The charts are made with StellaNavigator Ver.10 (AstroArts).
The magnitudes graphs are made with Comet for Windows.

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