Chi Cygni

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  V1974 Cygni

  V1974 Cygni or Nova Cygni 1992 was a relatively bright nova in the constellation Cygnus. It was discovered on February 19, 1992 by Peter Collins. At that time it was magnitude 6, the maximum magnitude reached was 4.4. The hydrogen burning on the white dwarf ended two years later, in 1994. This nova...
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  Deneb

  Deneb (α Cyg / α Cygni / Alpha Cygni) is the brightest star in the constellation Cygnus and one of the vertices of the Summer Triangle. It is the 19th brightest star in the night sky, with an apparent magnitude of 1.25. A blue-white supergiant, Deneb is also one of the most luminous nearby stars....

• AFGL 2591

  AFGL 2591 is a young, massive star in the constellation Cygnus. It is more than 3,000 light-years from Earth and is at least 10 times the size of the Sun and over 20,000 times as bright. It is estimated to be about one million years old, about 1-4520 of the Sun's age. AFGL 2591 is expelling a...

• Cygnus x-3

  Cygnus X-3 is one of the stronger binary X-ray sources in the sky. It is believed to be a compact object in a binary system which is pulling in a stream of gas from an ordinary star companion. It is observed in X rays, infrared, and radio, with an orbital periodicity of approximately 4.8 h, among...

• GJ 1245

  GJ 1245 or V1581 Cygni is a star system, 14 light-years away, relatively close to our Solar System. The star system contains GJ 1245 A, GJ 1245 B, and GJ 1245 C. All of the stars are rather dim. It is the 38th closest stellar system to the solar system, located in the constellation Cygnus.

• Omicron2 Cygni

  ο2 or 32 Cyg is an eclipsing binary of the Algol type. A red giant or supergiant is orbited by a blue star.

• Delta Cygni

  Delta Cygni (δ Cyg / δ Cygni) is a third-magnitude star in the constellation Cygnus. Delta Cygni will be the "North Star" for at least four centuries around 11,250 A.D. This star has carried the now obsolete proper names Ruc (Rukh) and Urakhga, both of which refer to the Roc, a mythical flying bird...

• WR 136

  WR 136, Wolf-Rayet Star.

• Gamma Cygni

  Gamma Cygni (γ Cyg / γ Cygni) is a star in the constellation Cygnus. It has the traditional name Sadr (also spelled Sadir or Sador). The traditional name comes from the Arabic word صدر şadr, "chest", the same word which gave rise to the star Schedar (Alpha Cassiopeiae). This star is surrounded by a...

• KY Cygni

  KY Cygni is a red supergiant star (spectral class M3m) located in the constellation Cygnus. It is one of the largest stars known, at about 1,420 times the Sun's diameter, and is also one of the most luminous, with about 300,000 times the Sun's luminosity. It is approximately 5,200 light-years away.