423P/Lemmon (2021)

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Updated on January 22, 2022

Profile Designation 423P/2021 A12 Recovery Date January 9, 2021 Magnitude 22.5 mag Recoverer Charles A. Schambeau, Y. R. Fernandez, M. Micheli, A. McKay, M. S. P. Kelley, I. Wong (Gemini Multi-Object Spectrograph (GMOS), Mauna Kea)

Orbital Elements Epoch 2021 Sept. 23.0 TT = JDT 2459480.5 T 2021 Sept. 20.01229 TT Rudenko q 5.4210049 (2000.0) P Q n 0.06440664 Peri. 80.40782 -0.39655866 -0.91454121 a 6.1638059 Node 33.31385 +0.77502617 -0.38007201 e 0.1205101 Incl. 8.34618 +0.49201185 -0.13841839 P 15.3 From 74 observations 2008 Feb. 8-2021 Jan. 15, mean residual 0".5.

Magnitudes Graph H = 15.5 G = 0.15 * Gray curve is: H = 12.0 G = 0.15

The orbital elements are published on M.P.E.C. 2021-M89. The magnitudes graphs are made with Comet for Windows.