IAU and Sky & Telescope magazine (Roger Sinnott & Rick Fienberg)
Cygnus
The Swan
OriginAncient
AbbreviationCyg
GenitiveCygni
Pronunciation/ˈsɪɡnəs/ SIG-nəss genitive /ˈsɪɡnaɪ/ SIG-nye
SIG-nus
LocationNorthern Hemisphere
Primary StarDeneb (α Cyg)
Right Ascention 20h 41m Declination +45° 17'
Martian Solar Lag δ(🜨→♂) +0.595 h (35.7 min)
Cygnus, “The Swan” is connected with several myths. In one of the more popular ones, Cygnus is Zeus. To seduce Leda, wife of Tyndareus, king of Sparta, Zeus took the form of a swan. The offspring from this union were Polydeuces and Castor, who are represented by the constellation Gemini, and the beautiful Helen (Helen of Troy).
www.underthesky.com
Cygnus as depicted by Johann Bayer in his Uranometria (1624). Source image provided by www.RareMaps.com — Barry Lawrence Ruderman Antique Maps Inc. Via www.underthenightsky.com.
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1 Cygnus 1402 2 Cygnus 1402 3 Cygnus 1402 4 Cygnus 1402 5 Cygnus 1402 6 Cygnus 1402 7 Cygnus 1402 8 Cygnus 1402 9 Cygnus 1402 10 Cygnus 1402 11 Cygnus 1402 12 Cygnus 1402 13 Cygnus 1402 14 Cygnus 1402 15 Cygnus 1402 16 Cygnus 1402 17 Cygnus 1402 18 Cygnus 1402 19 Cygnus 1402 20 Cygnus 1402 21 Cygnus 1402 22 Cygnus 1402 23 Cygnus 1402 24 Cygnus 1402 25 Cygnus 1402 26 Cygnus 1402 27 Cygnus 1402 28 Cygnus 1402 1 Delphinus 1402 11 June 4249 12 June 4249 13 June 4249 14 June 4249 15 June 4249 16 June 4249 17 June 4249 18 June 4249 19 June 4249 20 June 4249 21 June 4249 22 June 4249 23 June 4249 24 June 4249 25 June 4249 26 June 4249 27 June 4249 28 June 4249 29 June 4249 30 June 4249 1 July 4249 2 July 4249 3 July 4249 4 July 4249 5 July 4249 6 July 4249 7 July 4249 8 July 4249 9 July 4249 10 July 4249
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