Go Astr☾nomy

Leo Constellation
Constellation Leo the Lion Star Map

Leo, the Lion (Leo)  

(LEE-oh)


The constellation of Leo, the Lion, is best viewed in Spring during the month of April. It's brightest star is Regulus at magnitude 1.35. The boundary of the Leo constellation contains 19 stars that host known exoplanets.

Wolf-359 is the 5th closest star to Earth at 7.86 light years.

      1. Pronunciation:
      2. LEE-oh
      1. Meaning:
      2. Lion
      1. Genitive:
      2. Leonis
      1. Abbreviation:
      2. Leo
      1. Asterism:
      2. Sickle
      1. Constellation Family:
      2. Zodiacal
      1. Hemisphere:
      2. Northern
      1. Quadrant:
      2. NQ2
      1. Best viewing month*:
      2. April
      1. Right Ascension (avg):
      2. 10h 0m
      1. Declination (avg):
      2. 7° 0'
      1. Brightest star:
      2. Regulus  (1.35)
      1. Stars with planets:
      2. 19


    Double Stars in Leo

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

        1. Star system
        2. Magnitudes
        3. Type
        1. Alpha Leonis
        2. 1.4, 8.2
        3. double
        1. Gamma Leonis
        2. 2.4, 3.6
        3. double
        1. 54 Leonis
        2. 4.5, 6.3
        3. double


      Nebulae in Leo

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

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


        Galaxies in Leo

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

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


          Neutron Stars in Leo

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

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