C/2021 A9 ( PanSTARRS )

Japanese version
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Updated on February 20, 2021

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* Profile

Discovery Date January 12, 2021
Magnitude 21.4 mag
Discoverer Pan-STARRS 1 telescope (Haleakala)

* Orbital Elements

Epoch 2023 Dec. 2.0 TT = JDT 2460280.5
T 2023 Nov. 24.69991 TT                                 Rudenko
q   7.7073524            (2000.0)            P               Q
z  -0.0043714      Peri.  211.72489     -0.25255177     +0.93055212
 +/-0.0037111      Node   314.76001     +0.94737093     +0.29352574
e   1.0336916      Incl.  158.07576     +0.19673820     -0.21889583
From 39 observations 2020 Dec. 12-2021 Jan. 18, mean residual 0".4.

* Magnitudes Graph

        m1 = 6.0 + 5 log d + 10.0 log r

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The orbital elements are published on M.P.E.C. 2021-B143.
The magnitudes graphs are made with Comet for Windows.

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