Go Astr☾nomy

Cygnus Constellation
Constellation Cygnus the Swan Star Map

Cygnus, the Swan (Cyg)  

(SIG-nus)


The constellation of Cygnus, the Swan, is best viewed in Fall during the month of September. It's brightest star is Deneb at magnitude 1.25. The boundary of the Cygnus constellation contains 85 stars that host known exoplanets.

Red supergiant KY Cygni is the 6th largest known star in the universe at 1,400 times the size of the Sun.

      1. Pronunciation:
      2. SIG-nus
      1. Meaning:
      2. Swan
      1. Genitive:
      2. Cygni
      1. Abbreviation:
      2. Cyg
      1. Asterism:
      2. Northern Cross
      1. Constellation Family:
      2. Hercules
      1. Hemisphere:
      2. Northern
      1. Quadrant:
      2. NQ4
      1. Best viewing month*:
      2. September
      1. Right Ascension (avg):
      2. 20h 36m
      1. Declination (avg):
      2. 49° 35'
      1. Brightest star:
      2. Deneb  (1.25)
      1. Stars with planets:
      2. 85
      1. X-ray stars:
      2. 2 (binary) stars


    Double Stars in Cygnus

    These are the brightest and easiest-to-find double, triple, and quadruple star systems in the constellation Cygnus.

        1. Star system
        2. Magnitudes
        3. Type
        1. Beta Cygni
        2. 3.2, 4.7
        3. double
        1. 31 Cygni
        2. 3.9, 7.0, 4.8
        3. triple
        1. 61 Cygni
        2. 5.2, 6.1
        3. double


      Star Clusters in Cygnus

      The most notable, famous, and easy-to-find star clusters in the constellation Cygnus :

          1. Star cluster
          2. Catalog #
          3. Cluster type


        Nebulae in Cygnus

        The most notable, famous, and easy-to-find nebulae in the constellation Cygnus :

            1. Nebula name
            2. Catalog #
            3. Nebula type


          Galaxies in Cygnus

          The most notable, famous, and easy-to-find galaxies in the constellation Cygnus:

              1. Galaxy name
              2. Catalog #
              3. Galaxy type


            Neutron Stars in Cygnus

            These are the most well-known neutron stars in the constellation Cygnus. Although neutron stars cannot be seen in any amateur telescope, they are at the center of many supernova remnant nebulae, which can be seen.

                1. Neutron star
                3. Type


              Black Holes in Cygnus

              These are the most well-known smaller (non-supermassive) black holes in the constellation Cygnus. Although black holes cannot be seen directly, the smaller ones are at the center of some star clusters and supernova remnant nebulae, which can be seen. Supermassive black holes are at the center of most galaxies, such as Sagittarius A* at the center of our Milky Way galaxy.

                  1. Black hole
                  3. Type
                  1. Cygnus X-1
                  3. stellar
                  1. Cygnus X-3
                  3. stellar
                  1. V404 Cyg
                  3. stellar


                Exoplanets in Cygnus

                These are the most notable named exoplanet systems known in the constellation Cygnus. Bear in mind that we will likely discover billions of exoplanets in the years to come.

                    1. Host star name
                    3. Exoplanet name

                  * For southern latitudes, flip the season listed. For example, if a constellation is listed as best viewed in the summer in the month of July, in the southern hemisphere the constellation would be best viewed in the winter in January and would be upside-down.

                  ** Circumpolar constellations are visible year-round in the hemisphere listed (and not at all in the opposite).