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11 Parthenope
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==Mass== In 2007, Baer and Chesley calculated a higher mass and density for Parthenope based on [[Perturbation (astronomy)|perturbations]] by the 90 km asteroid [[17 Thetis]]. Baer and Chesley calculated a mass of 6.3{{e|18}} kg with a density of 3.3 g/cm<sup>3</sup>.<ref name="Baer2007">{{cite journal |last=Baer |first=James |author2=Steven R. Chesley |title=Astrometric masses of 21 asteroids, and an integrated asteroid ephemeris |journal=Celestial Mechanics and Dynamical Astronomy |volume=100 |issue=2008 |pages=27β42 |publisher=Springer Science+Business Media B.V. 2007 |doi=10.1007/s10569-007-9103-8 |date=2008 |bibcode = 2008CeMDA.100...27B |doi-access=free }}</ref> 2008 estimates by Baer suggest a mass of 6.15{{e|18}} kg.<ref name=Baer>{{cite web |date=2008 |title=Recent Asteroid Mass Determinations |publisher=Personal Website |author=Jim Baer |url=http://home.earthlink.net/~jimbaer1/astmass.txt |accessdate=6 December 2008 |archive-url=https://web.archive.org/web/20130702212735/http://home.earthlink.net/~jimbaer1/astmass.txt |archive-date=2 July 2013 |url-status=dead }}</ref> The 1997 and 2001 estimates by Viateau and Rapaport were closer to 5{{e|18}} kg with a density of 2.7 g/cm<sup>3</sup>.<ref name="Baer2007"/>
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