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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MS 597674 MS 597675 MS 597676 MS 597677 MS 597678 MS 597679 MS 597680 MS 597681 MS 597682 MS 597683 MS 597684 MS 597685 MS 597686 MS 597687 MS 597688 MS 597689 MS 597690 MS 597691 MS 597692 MS 597693 MS 597694 MS 597695 MS 597696 MS 597697 MS 597698 MS 597699 MS 597700 MS 597701 MS 597702 MD 614266 MD 614267 MD 614268 MD 614269 MD 614270 MD 614271 MD 614272 MD 614273 MD 614274 MD 614275 MD 614276 MD 614277 MD 614278 MD 614279 MD 614280 MD 614281 MD 614282 MD 614283 MD 614284 MD 614285 MD 614286 MD 614287 MD 614288 MD 614289 MD 614290 MD 614291 MD 614292 MD 614293 MD 614294 MD 614295