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 -545→
SolPhoDeiTerVenJovSat
123456
78910111213
14151617181920
21222324252627
28
1 Cygnus -545 2 Cygnus -545 3 Cygnus -545 4 Cygnus -545 5 Cygnus -545 6 Cygnus -545 7 Cygnus -545 8 Cygnus -545 9 Cygnus -545 10 Cygnus -545 11 Cygnus -545 12 Cygnus -545 13 Cygnus -545 14 Cygnus -545 15 Cygnus -545 16 Cygnus -545 17 Cygnus -545 18 Cygnus -545 19 Cygnus -545 20 Cygnus -545 21 Cygnus -545 22 Cygnus -545 23 Cygnus -545 24 Cygnus -545 25 Cygnus -545 26 Cygnus -545 27 Cygnus -545 28 Cygnus -545 1 Lepus -544 16 June 0586 17 June 0586 18 June 0586 19 June 0586 20 June 0586 21 June 0586 22 June 0586 23 June 0586 24 June 0586 25 June 0586 26 June 0586 27 June 0586 28 June 0586 29 June 0586 30 June 0586 1 July 0586 2 July 0586 3 July 0586 4 July 0586 5 July 0586 6 July 0586 7 July 0586 8 July 0586 9 July 0586 10 July 0586 11 July 0586 12 July 0586 13 July 0586 14 July 0586 15 July 0586
MS -511491 MS -511492 MS -511493 MS -511494 MS -511495 MS -511496 MS -511497 MS -511498 MS -511499 MS -511500 MS -511501 MS -511502 MS -511503 MS -511504 MS -511505 MS -511506 MS -511507 MS -511508 MS -511509 MS -511510 MS -511511 MS -511512 MS -511513 MS -511514 MS -511515 MS -511516 MS -511517 MS -511518 MS -511463 MD -525709 MD -525708 MD -525707 MD -525706 MD -525705 MD -525704 MD -525703 MD -525702 MD -525701 MD -525700 MD -525699 MD -525698 MD -525697 MD -525696 MD -525695 MD -525694 MD -525693 MD -525692 MD -525691 MD -525690 MD -525689 MD -525688 MD -525687 MD -525686 MD -525685 MD -525684 MD -525683 MD -525682 MD -525681 MD -525680