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Multiyear Ground-based Survey Photometry of Active Comet 103P/Hartley 2 and Centaur (2060) Chiron: A Tale of Two Comets in the Pre-LSST Era

  • Authors: Joseph Murtagh, Megan E. Schwamb, Michael S. P. Kelley, Matthew M. Knight, Thomas Lehmann, Giannantonio Milani, A. Fraser Gillan, Alan Fitzsimmons, Ryan R. Lyttle, Matthew M. Dobson, Carrie E. Holt, Tim Lister, Joseph P. Chatelain, Sarah Greenstreet, Quanzhi Ye, 泉志 叶, Henry H. Hsieh, Denis Bodewits, Tracy X. Chen, Richard G. Dekany, Matthew J. Graham, Steven L. Groom, George Helou, Mansi M. Kasliwal, Ashish A. Mahabal, Reed Riddle

Joseph Murtagh et al 2026 The Planetary Science Journal 7 .

  • Provider: AAS Journals

Caption: Figure 8.

Distance-corrected light curves for (2060) Chiron color-shifted to (top) ATLAS o band and (bottom) ATLAS c band. The different datasets are denoted via differing colors. The solid black curve running over each observing season in each dataset is a third-order polynomial spline fit. Overplotted in dashed–dotted navy lines in both plots is the date of contemporaneous JWST observations on 2023 July 12 (N. Pinilla-Alonso et al. 2024) and 2024 January 9 (I. Wong et al. 2026) for reference.

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