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 -240→
SolPhoDeiTerVenJovSat
123456
78910111213
14151617181920
21222324252627
28
1 Cygnus -240 2 Cygnus -240 3 Cygnus -240 4 Cygnus -240 5 Cygnus -240 6 Cygnus -240 7 Cygnus -240 8 Cygnus -240 9 Cygnus -240 10 Cygnus -240 11 Cygnus -240 12 Cygnus -240 13 Cygnus -240 14 Cygnus -240 15 Cygnus -240 16 Cygnus -240 17 Cygnus -240 18 Cygnus -240 19 Cygnus -240 20 Cygnus -240 21 Cygnus -240 22 Cygnus -240 23 Cygnus -240 24 Cygnus -240 25 Cygnus -240 26 Cygnus -240 27 Cygnus -240 28 Cygnus -240 2 Lepus -239 13 April 1160 14 April 1160 15 April 1160 16 April 1160 17 April 1160 18 April 1160 19 April 1160 20 April 1160 21 April 1160 22 April 1160 23 April 1160 24 April 1160 25 April 1160 26 April 1160 27 April 1160 28 April 1160 29 April 1160 30 April 1160 1 May 1160 2 May 1160 3 May 1160 4 May 1160 5 May 1160 6 May 1160 7 May 1160 8 May 1160 9 May 1160 10 May 1160 11 May 1160 12 May 1160
MS -307570 MS -307571 MS -307572 MS -307573 MS -307574 MS -307575 MS -307576 MS -307577 MS -307578 MS -307579 MS -307580 MS -307581 MS -307582 MS -307583 MS -307584 MS -307585 MS -307586 MS -307587 MS -307588 MS -307589 MS -307590 MS -307591 MS -307592 MS -307593 MS -307594 MS -307595 MS -307596 MS -307597 MS -307542 MD -316124 MD -316123 MD -316122 MD -316121 MD -316120 MD -316119 MD -316118 MD -316117 MD -316116 MD -316115 MD -316114 MD -316113 MD -316112 MD -316111 MD -316110 MD -316109 MD -316108 MD -316107 MD -316106 MD -316105 MD -316104 MD -316103 MD -316102 MD -316101 MD -316100 MD -316099 MD -316098 MD -316097 MD -316096 MD -316095