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Vestoids, Vesta, and HEDs

UCLA Meteorite Gallery Lecture Series: April 2022 Title: Vestoids, Vesta, and HEDs Lecturer: Dr. Thomas Burbine, Mount Holyoke College Vestoids are small bodies that have reflectance spectra similar to both Vesta and HEDs (howardites, eucrites, and diogenites). Vestoids are found in the Vesta family, throughout the inner asteroid belt, in the middle and outer asteroid belt, and among the near-Earth asteroid population. I have devised formulas for determining the bulk pyroxene mineralogies of HED-like material and have used these formulas to derive the bulk pyroxene compositions of Vestoids and to determine possible relationships between Vestoids and different HED groups. In this talk, I will discuss the spectral properties of Vestoids, their interpreted mineralogies, and their relationships with Vesta. Join our newsletter by contacting [email protected] to hear about other monthly lectures and events we are hosting!