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clean up & uniformity
| rightascension =20.62
| rightascension =20.62
| declination =+42.03<sup>o</sup>
| declination =+42.03<sup>o</sup>
| constellation =[[Cepheus]]<br /> [[Draco (constellation)|Draco]]<br /> [[Lyra]]<br /> [[Vulpecula]]<br /> [[Pegasus_(constellation)|Pegasus]]<br /> [[Lacerta]]
| constellation =[[Cepheus]]<br /> [[Draco (constellation)|Draco]]<br /> [[Lyra]]<br /> [[Vulpecula]]<br /> [[Pegasus (constellation)|Pegasus]]<br /> [[Lacerta]]
| area =804 sq. deg.
| area =804 sq. deg.
| starnumber =84 Bayer/Flamsteed stars
| starnumber =84 Bayer/Flamsteed stars
The binary star [[Albireo]] (Beta Cygni) represents the head of the swan. The tail is where the brightest star of the constellation, [[Deneb]], is located. Deneb is also the tip of the Northern Cross and the upper-left corner of the [[Summer Triangle]]. The dim binary star [[61 Cygni]] also lies within the constellation and is the closet star within it, only some 11.4 light years away, and is famous for being the first star to be measured using [[parallax]].
The binary star [[Albireo]] (Beta Cygni) represents the head of the swan. The tail is where the brightest star of the constellation, [[Deneb]], is located. Deneb is also the tip of the Northern Cross and the upper-left corner of the [[Summer Triangle]]. The dim binary star [[61 Cygni]] also lies within the constellation and is the closet star within it, only some 11.4 light years away, and is famous for being the first star to be measured using [[parallax]].
Cygnus is also the location of several notable deep sky objects, including numerous diffuse and [[planetary nebula|planetary nebulae]], and [open star cluster|open star clusters]]. The '''Fireworks Galaxy''' (NGC 6946) is also located here, known as the most active supernovae galaxy known. Another galaxy is '''Cygnus A''', one of the strongest astronomical [[radio]] sources known. '''Cygnus X-1''' is another astronomical feature within the constellation and is famous for being one of the greatest known sources of [[x-ray|x-rays]].<ref name="seds">http://seds.org/Maps/Stars_en/Fig/cygnus.html</ref>
Cygnus is also the location of several notable deep sky objects, including numerous diffuse and [[planetary nebula]]e, and [[open star cluster]]s. The '''Fireworks Galaxy''' (NGC 6946) is also located here, known as the most active supernovae galaxy known. Another galaxy is '''Cygnus A''', one of the strongest astronomical [[radio]] sources known. '''Cygnus X-1''' is another astronomical feature within the constellation and is famous for being one of the greatest known sources of [[x-ray]]s.<ref name="seds"/>
===Named Stars===
===Named Stars===