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.
←Cygnus -615→
SolPhoDeiTerVenJovSat
123456
78910111213
14151617181920
21222324252627
28
1 Cygnus -615 2 Cygnus -615 3 Cygnus -615 4 Cygnus -615 5 Cygnus -615 6 Cygnus -615 7 Cygnus -615 8 Cygnus -615 9 Cygnus -615 10 Cygnus -615 11 Cygnus -615 12 Cygnus -615 13 Cygnus -615 14 Cygnus -615 15 Cygnus -615 16 Cygnus -615 17 Cygnus -615 18 Cygnus -615 19 Cygnus -615 20 Cygnus -615 21 Cygnus -615 22 Cygnus -615 23 Cygnus -615 24 Cygnus -615 25 Cygnus -615 26 Cygnus -615 27 Cygnus -615 28 Cygnus -615 1 Lepus -614 5 October 0454 6 October 0454 7 October 0454 8 October 0454 9 October 0454 10 October 0454 11 October 0454 12 October 0454 13 October 0454 14 October 0454 15 October 0454 16 October 0454 17 October 0454 18 October 0454 19 October 0454 20 October 0454 21 October 0454 22 October 0454 23 October 0454 24 October 0454 25 October 0454 26 October 0454 27 October 0454 28 October 0454 29 October 0454 30 October 0454 31 October 0454 1 November 0454 2 November 0454 3 November 0454
MS -558292 MS -558293 MS -558294 MS -558295 MS -558296 MS -558297 MS -558298 MS -558299 MS -558300 MS -558301 MS -558302 MS -558303 MS -558304 MS -558305 MS -558306 MS -558307 MS -558308 MS -558309 MS -558310 MS -558311 MS -558312 MS -558313 MS -558314 MS -558315 MS -558316 MS -558317 MS -558318 MS -558319 MS -558264 MD -573810 MD -573809 MD -573808 MD -573807 MD -573806 MD -573805 MD -573804 MD -573803 MD -573802 MD -573801 MD -573800 MD -573799 MD -573798 MD -573797 MD -573796 MD -573795 MD -573794 MD -573793 MD -573792 MD -573791 MD -573790 MD -573789 MD -573788 MD -573787 MD -573786 MD -573785 MD -573784 MD -573783 MD -573782 MD -573781