Novel calculations peg age of ‘baby’ asteroid

A Cornell-lead research team derived the age of Selam, a “moonlet” orbiting the asteroid Dinkinesh in the main asteroid belt, based only on the pair’s dynamics.
Read the story in the Cornell Chronicle.

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asteroid Dinkinesh and Selam
A pair of stereoscopic images of the asteroid Dinkinesh and Selam created with data collected by the L’LORRI camera on NASA's Lucy spacecraft in the minutes around closest approach on Nov. 1, 2023. NASA/Goddard/SwRI/Johns Hopkins APL/NOIRLab for the original images/Brian May/Claudia Manzoni for stereo processing of the images