P/2021 R9 ( Sheppard-Tholen )

Japanese version
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Updated on August 6, 2022

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* Profile

Discovery Date September 5, 2021
Magnitude 22.4 mag
Discoverer Scott S. Sheppard and David J. Tholen (Subaru reflector at Mauna Kea)

* Orbital Elements

Epoch 2022 Aug. 9.0 TT = JDT 2459800.5                                          
T 2022 Aug. 18.05625 TT                                 Rudenko                 
q   4.6269202            (2000.0)            P               Q                  
n   0.07347223     Peri.   97.53254     +0.75645402     -0.64492285             
a   5.6457360      Node   302.69689     +0.53741239     +0.70775655             
e   0.1804576      Incl.    7.43292     +0.37278041     +0.28836639             
P  13.4                                                                         
From 46 observations 2007 June 6-2022 Jan. 25, mean residual 0".3.              

* Magnitudes Graph

        m1 = 12.0 + 5 log d + 10.0 log r

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The orbital elements are published on M.P.E.C. 2022-O19.
The magnitudes graphs are made with Comet for Windows.

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