Cygnus

• Abbreviation: Cyg
• Genitive: Cygni
• Translation: The Swan or the Northern Cross
• Sky Chart
• Peoria Astronomical Society Cygnus Page
• Interactive star chart (Java applet)

Position in the Sky

• Explanation of the following information
• Right Ascension: 21 hours
• Declination: 40 degrees
• Visible between latitudes 90 and -40 degrees
• Best seen in September (at 9:00 PM)

Named Stars

• DENEB (Alpha Cyg)
• ALBIREO (Beta 1 Cyg)
• Sadr (Gamma Cyg)
• Gienah Cygni (Epsilon Cyg)
• Azelfafage (Pi 1 Cyg)
• Ruchba (Omega 2 Cyg)

Messier Objects

• M29 (open cluster)
• M39 (open cluster)

Deneb, along with Altair and Vega form the well-known Summer Triangle.

Another famous object in Cygnus is Cygnus X-1, a black hole candidate.

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