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JWST and Gemini Observations of the Active Centaur 450P/LONEOS: Nucleus and Coma Characterizations

  • Authors: Charles A. Schambeau, Michael S. P. Kelley, Maria Womack, Eva Lilly, Theodore Kareta, Sara Faggi, Olga Harrington Pinto, Marco Micheli, Dominique Bockelée-Morvan, Yanga R. Fernández, Adam McKay, Noemi Pinilla-Alonso, Javier Licandro, Aren Beck, Geronimo L. Villanueva, James Bauer, Lori Feaga, Michael A. DiSanti, Kacper Wierzchos

Charles A. Schambeau et al 2026 The Planetary Science Journal 7 .

  • Provider: AAS Journals

Caption: Figure 10.

The evolution of 450P’s perihelion distance (q, blue curve) and semimajor axis (a, gold/orange curve) from 1500 CE to 2500 CE using 50 clone orbital integrations. The recent a-jump after the 1992 close approach to Saturn is easily seen by the rapid decrease in both a and q.

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