Maak hoofkeuseskerm oop

Wysigings

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| discovery = yes
| discoverer = [[Galileo Galilei]]
| discovered = [[7 Januarie]] [[1610]]<ref name="SidereusNuncius">{{cite web |last=Galilei |first=Galileo |url=http://hsci.cas.ou.edu/images/barker/5990/Sidereus-Nuncius-whole.pdf |month=Maart |year=1610 |title=Sidereus Nuncius |coauthors=translated by Edward Carlos and edited by Peter Barker |format=PDF |publisher=University of Oklahoma History of Science |accessdate=2010-01-13}}</ref><ref name="Wright">{{cite web |last=Wright |first=Ernie |url=http://home.comcast.net/~erniew/astro/sidnunj1.html |title=Galileo's First Observations of Jupiter |format=PDF |publisher=University of Oklahoma History of Science |accessdate=2010-01-13}}</ref><ref name="NASA">{{cite web|url=http://solarsystem.nasa.gov/planets/profile.cfm?Object=Jup_Ganymede |title=NASA: Ganymede |publisher=Solarsystem.nasa.gov |date=2009-09-29 |accessdate=2010-03-08}}</ref>
| semimajor = 1&nbsp;070&nbsp;400&nbsp;km<ref name=orbit>{{cite web|title=Planetary Satellite Mean Orbital Parameters|publisher=Jet Propulsion Laboratory, California Institute of Technology|url=http://ssd.jpl.nasa.gov/?sat_elem}}</ref>
| eccentricity = 0,0013<ref name=orbit/>
69 643

wysigings