print email comment close The "Planemo" Twins: Astronomers Discover Double Planetary Mass Object URL: http://www.eso.org/public/outreach/press-rel/pr-2006/pr-29-06.html Description: This release describes the 2006 discovery of "an approximately seven-Jupiter-mass companion to an object that is itself only twice as hefty. Both objects have masses similar to those of extra-solar giant planets, but they are not in orbit around a star -- instead they appear to circle each other." Includes photos and links to releases related to these planetary mass objects (planemos). From the European Southern Observatory (ESO), an intergovernmental, European organization for astronomical research. Publisher: European Southern Observatory (ESO) Extra Keywords University of Toronto LII Database Information: Record 22261 created by Jennifer English on 08/07/2006 Last modification on 06/12/2007 Published: 08/10/2006   Funding agency: California State Library LII Item ID: http://lii.org/cs/lii/view/item/22261