Semi-major axis vs. eccentricity of the orbits of centaurs as defined with 5.2 < q <30 au and a < 30 au. Inactive and active centaurs are shown with small black dots and large blue dots, respectively. Centaurs detected by OSSOS are shown with red diamonds. Solid curves show the orbits having perihelia distances equal to the semi-major axis of Jupiter (qJ), Saturn (qS), Uranus (qU), and Neptune(qN). Dashed lines show semi-major axis limits of 5.2 and 30 au.
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