Go-astronomy logo

Norma Constellation
Constellation Norma the Square (and Rule) Star Map

Norma, the Square (and Rule) (Nor)

(NOR-muh)


The Southern constellation of Norma, the Square (and Rule), is best viewed in Summer during the month of July. It's brightest star is Gamma2 Normae at magnitude 4.01. The boundary of the Norma constellation contains 4 stars that host known exoplanets.

Red supergiant HD 143183 is the 4th largest known star in the universe at 1,500 times the size of the Sun.

      1. Pronunciation:
      2. NOR-muh
      1. Meaning:
      2. Square (and Rule)
      1. Genitive:
      2. Normae
      1. Abbreviation:
      2. Nor
      1. Constellation Family:
      2. LaCaille
      1. Hemisphere:
      2. Southern
      1. Quadrant:
      2. SQ3
      1. Best viewing month*:
      2. July
      1. Right Ascension (avg):
      2. 16h 3m
      1. Declination (avg):
      2. -52° 43'
      1. Brightest star:
      2. Gamma2 Normae  (4.01)
      1. Stars with planets:
      2. 4
      1. X-ray stars:
      2. 9 (3 binaries) stars



    Brightest Stars in Norma

    The 10 brightest stars in the constellation Norma by magnitude.

        1. Star
        2. Magnitude
        3. Spectral class



      Star Clusters in Norma

      The most notable and easy-to-find star clusters in the constellation Norma . Also see all star clusters.

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



        Nebulae in Norma

        Notable and easy-to-find nebulae in the constellation Norma. Also see all nebulae.

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



          Neutron Stars in Norma

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

              1. Neutron star
              2. Type



            Black Holes in Norma

            These are the most well-known smaller (non-supermassive) black holes in the constellation Norma. 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. Also see all black holes.

                1. Black hole
                2. Type
                1. V381 Nor
                2. stellar

              * 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).