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 -209→
SolPhoDeiTerVenJovSat
123456
78910111213
14151617181920
21222324252627
28
1 Cygnus -209 2 Cygnus -209 3 Cygnus -209 4 Cygnus -209 5 Cygnus -209 6 Cygnus -209 7 Cygnus -209 8 Cygnus -209 9 Cygnus -209 10 Cygnus -209 11 Cygnus -209 12 Cygnus -209 13 Cygnus -209 14 Cygnus -209 15 Cygnus -209 16 Cygnus -209 17 Cygnus -209 18 Cygnus -209 19 Cygnus -209 20 Cygnus -209 21 Cygnus -209 22 Cygnus -209 23 Cygnus -209 24 Cygnus -209 25 Cygnus -209 26 Cygnus -209 27 Cygnus -209 28 Cygnus -209 1 Lepus -208 10 August 1218 11 August 1218 12 August 1218 13 August 1218 14 August 1218 15 August 1218 16 August 1218 17 August 1218 18 August 1218 19 August 1218 20 August 1218 21 August 1218 22 August 1218 23 August 1218 24 August 1218 25 August 1218 26 August 1218 27 August 1218 28 August 1218 29 August 1218 30 August 1218 31 August 1218 1 September 1218 2 September 1218 3 September 1218 4 September 1218 5 September 1218 6 September 1218 7 September 1218 8 September 1218
MS -286843 MS -286844 MS -286845 MS -286846 MS -286847 MS -286848 MS -286849 MS -286850 MS -286851 MS -286852 MS -286853 MS -286854 MS -286855 MS -286856 MS -286857 MS -286858 MS -286859 MS -286860 MS -286861 MS -286862 MS -286863 MS -286864 MS -286865 MS -286866 MS -286867 MS -286868 MS -286869 MS -286870 MS -286815 MD -294821 MD -294820 MD -294819 MD -294818 MD -294817 MD -294816 MD -294815 MD -294814 MD -294813 MD -294812 MD -294811 MD -294810 MD -294809 MD -294808 MD -294807 MD -294806 MD -294805 MD -294804 MD -294803 MD -294802 MD -294801 MD -294800 MD -294799 MD -294798 MD -294797 MD -294796 MD -294795 MD -294794 MD -294793 MD -294792