Editing Ring Nebula (section)

==External links==
{{Commons category|Ring Nebula}}
* [[WorldWide Telescope]]
** [http://www.worldwidetelescope.org/wwtweb/goto.aspx?object=M57&ra=18.8933&dec=33.0333&zoom=1 M57 (The Ring Nebula)]
* [https://web.archive.org/web/20130712214658/http://www.caha.es/the-ring-nebula.html M57] ''Calar Alto Observatory''
* [http://messier.seds.org/m/m057.html Messier 57] ''SEDS''
* [[Astronomy Picture of the Day]]
** [https://apod.nasa.gov/apod/ap050311.html Infrared Ring Nebula] (2005 March 11)
** [https://apod.nasa.gov/apod/ap091106.html Ring Nebula Deep Field] (2009 November 6)
** [https://apod.nasa.gov/apod/ap091115.html M57: The Ring Nebula] (2009 November 15)
** [https://apod.nasa.gov/apod/ap120312.html The Scale of the Universe – Interactive] (2012 March 12)
* [http://www.nightskyinfo.com/archive/ring_nebula M57 – Planetary Nebula in Lyra] ''NightSkyInfo''
* [http://www.spacetelescope.org/bin/images.pl?searchtype=freesearch&string=M57 M57] {{Webarchive|url=https://web.archive.org/web/20070313101824/http://www.spacetelescope.org/bin/images.pl?searchtype=freesearch&string=M57 |date=2007-03-13 }} ''ESA/Hubble''
* [http://www.constellation-guide.com/ring-nebula-m57-in-lyra/ Ring Nebula (M57) in Lyra] ''Constellation Guide'' (May 26, 2013)
* {{cite web|title=M57 – Ring Nebula|url=http://www.deepskyvideos.com/videos/messier/M57_ring_nebula.html|work=Deep Sky Videos|publisher=[[Brady Haran]]|author=Szymanek, Nik|author-link=Nik Szymanek|author2=Lawrence, Pete |df=ymd}}{{WikiSky|name=The Ring Nebula}}

{{Portal bar|Astronomy|Stars|Outer space}}
{{Messier objects}}
{{catalogs|M=57|NGC=6720|GC=4447}}
{{NGC objects: 6001-7000}}
{{Sky|18|53|35.079|+|33|01|45.03|2300}}

[[Category:Planetary nebulae]]
[[Category:Lyra]]
[[Category:Messier objects]]
[[Category:NGC objects]]
[[Category:Orion–Cygnus Arm]]
[[Category:Astronomical objects discovered in 1779]]
[[Category:Discoveries by Charles Messier]]