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Gemini Constellation
Constellation Gemini the Twins Star Map

Gemini, the Twins (Gem)

(JEM-uh-nye)


The constellation of Gemini, the Twins, is best viewed in Winter during the month of February. It's brightest star is Pollux at magnitude 1.15. The boundary of the Gemini constellation contains 11 stars that host known exoplanets.

      1. Pronunciation:
      2. JEM-uh-nye
      1. Meaning:
      2. Twins
      1. Genitive:
      2. Geminorum
      1. Abbreviation:
      2. Gem
      1. Constellation Family:
      2. Zodiacal
      1. Hemisphere:
      2. Northern
      1. Quadrant:
      2. NQ2
      1. Best viewing month*:
      2. February
      1. Right Ascension (avg):
      2. 6h 51m
      1. Declination (avg):
      2. 24° 49'
      1. Brightest star:
      2. Pollux  (1.15)
      1. Stars with planets:
      2. 11


    Double Stars in Gemini

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

        1. Star system
        2. Magnitudes
        3. Type
        1. Delta Geminorum
        2. 3.6, 8.2
        3. double
        1. Alpha Geminorum
        2. 1.9, 3.0
        3. double


      Star Clusters in Gemini

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

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


        Nebulae in Gemini

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

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


          Neutron Stars in Gemini

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

            These are the most well-known smaller (non-supermassive) black holes in the constellation Gemini. 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. LB-1
                3. stellar


              Exoplanets in Gemini

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