Go-astronomy logo

Cassiopeia Constellation
Constellation Cassiopeia the Mother of Andromeda Star Map

Cassiopeia, the Mother of Andromeda (Cas)

(CASS-ee-uh-PEE-uh)


The constellation of Cassiopeia, the Mother of Andromeda, is best viewed in Fall during the month of November. It's brightest star is Schedar at magnitude 2.24. The boundary of the Cassiopeia constellation contains 14 stars that host known exoplanets.

      1. Pronunciation:
      2. CASS-ee-uh-PEE-uh
      1. Meaning:
      2. Mother of Andromeda
      1. Genitive:
      2. Cassiopeiae
      1. Abbreviation:
      2. Cas
      1. Constellation Family:
      2. Perseus
      1. Hemisphere:
      2. Northern
      1. Quadrant:
      2. NQ1
      1. Best viewing month*:
      2. November
      1. Circumpolar** (N=northern, S=southern):
      2. N
      1. Right Ascension (avg):
      2. 0h 52m
      1. Declination (avg):
      2. 60° 18'
      1. Brightest star:
      2. Schedar  (2.24)
      1. Stars with planets:
      2. 14
      1. X-ray stars:
      2. 3 (pulsars) stars
      1. Gamma-ray stars:
      2. 1 stars


    Double Stars in Cassiopeia

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

        1. Star system
        2. Magnitudes
        3. Type
        1. Eta Cassiopeiae
        2. 3.5, 7.4
        3. double
        1. Sigma Cassiopeiae
        2. 5.0, 7.2
        3. double


      Star Clusters in Cassiopeia

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

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


        Nebulae in Cassiopeia

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

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


          Galaxies in Cassiopeia

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

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


            Neutron Stars in Cassiopeia

            These are the most well-known neutron stars in the constellation Cassiopeia. 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


              Exoplanets in Cassiopeia

              These are the most notable named exoplanet systems known in the constellation Cassiopeia. 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).