C/2021 A9 ( PanSTARRS )

Japanese version
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Updated on February 27, 2024

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* Profile

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

* Pictures

* Orbital Elements

Epoch 2023 Sept. 13.0 TT = JDT 2460200.5
T 2023 Dec. 1.76827 TT                                  Rudenko
q   7.7600380            (2000.0)            P               Q
z  -0.0002105      Peri.  211.46638     -0.25818021     +0.92891137
 +/-0.0000027      Node   314.83795     +0.94578536     +0.29907051
e   1.0016335      Incl.  158.01564     +0.19706100     -0.21835864
>From 318 observations 2020 Dec. 12-2023 Dec. 8, mean residual 0".6.

* Magnitudes Graph

        m1 = -8.5 + 5 log d + 25 log r(t + 250)

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The orbital elements are published on M.P.E.C. 2023-X256.
The magnitudes graphs are made with Comet for Windows.

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