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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 1.

Example observations of (2060) Chiron for survey/telescopes (left) ATLAS, (middle) ZTF, and (right) LCO/LOOK. On all images, the scale of the aperture size used is demarcated by a horizontal white line of length 5″. All panels have been rotated so that north is up and east is left. Also marked on each image are the antisolar vector (yellow) and antimotion vector (cyan), as obtained from JPL Horizons. On the pixel scale of all images, Chiron does not display any visual degree of extension, even surrounding its maximum-brightness period at opposition around UT 2024 October 17.

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