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Cygnus A

Peculiar Galaxy Cygnus A (3C 405) in Cygnus

[Cygnus A image]
Right Ascension 19:59.5 (h:m)
Declination +40:44 (deg:m)
Distance 700,000 (kly)
Visual brightness (mag)
Apparent Dimension (arc min)

Cygnus A is the most powerful radio galaxy in our part of the universe. Although 700 million light years distant, it is one of the brightest radio sources in our sky. It is receding from us at 16811 km/sec, corresponding to a redshift of 0.05607.

Our image was taken by the Hubble Space Telescope, cropped from a mosaic of three images by Bill Keel.

  • More information on this image and background info on The powerful radio galaxy Cygnus A (Bill Keel)

    Links and more images:

    [Constellations] | [SEDS] | [MAA]

    Hartmut Frommert
    Christine Kronberg