Editing Natural satellite (section)

=== Temporary satellites ===
{{Main|Temporary satellite}}
The capture of an asteroid from a heliocentric orbit is not always permanent. According to simulations, [[temporary satellite]]s should be a common phenomenon.<ref name="Carlisle">{{cite news |author=Camille M. Carlisle |title=Pseudo-moons Orbit Earth |work=Sky & Telescope |date=30 December 2011 }}</ref><ref name="Fedorets">{{cite journal |last1=Fedorets |first1=Grigori |last2=Granvik |first2=Mikael |last3=Jedicke |first3=Robert |title=Orbit and size distributions for asteroids temporarily captured by the Earth-Moon system |journal=Icarus |volume=285 |pages=83–94 |date=15 March 2017 |doi=10.1016/j.icarus.2016.12.022 |bibcode=2017Icar..285...83F }}</ref> The only observed examples are {{mpl|1991 VG}}, {{mpl|2006 RH|120}}, {{mpl|2020 CD|3}}.

{{mpl|2006 RH|120}} was a temporary satellite of Earth for nine months in 2006 and 2007.<ref name="Shefford">{{cite web |url=http://www.birtwhistle.org/Gallery6R10DB9.htm |title=2006 RH120 ( = 6R10DB9) (A second moon for the Earth?) |publisher=Great Shefford Observatory |date=14 September 2017 |access-date=13 November 2017 |url-status=live |archive-url=https://web.archive.org/web/20150206154817/http://www.birtwhistle.org/Gallery6R10DB9.htm |archive-date=6 February 2015 }}</ref><ref name="Sinott">{{cite news |title=Earth's "Other Moon" |work=Sky & Telescope |author=Roger W. Sinnott |date=17 April 2007 |url=http://www.skyandtelescope.com/news/7067527.html |url-status=dead |archive-url=https://web.archive.org/web/20120402120646/http://www.skyandtelescope.com/news/7067527.html |archive-date=2 April 2012 |access-date=12 March 2018 }}</ref>