Constellations are groupings of stars that, when viewed from Earth, form distinct shapes. Constellations have been around since the dawn of recorded history. In this section you will learn all about constellations and their histories.


Centaurus, a southern constellation. It is named for the centaur, a creature from Greek mythology.

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  • Cygnus


    Cygnus, a constellation that lies in the Milky Way between Lyra and Pegasus. It contains the first-magnitude star Deneb. See more »

  • Dipper, Big and Little

    Dipper, Big and Little

    Dipper, Big and Little, two groups of stars of the northern part of the sky, so called because of their resemblance to the outline of water dippers. See more »

  • Gemini


    Gemini, a constellation and the third sign of the zodiac. The name in Latin means the twins. See more »

  • Hercules (constellation)

    Hercules (constellation)

    Hercules, a constellation of the Northern Hemisphere. It is best seen during the summer. See more »

  • Leo (constellation)

    Leo (constellation)

    Leo, a constellation and the fifth sign of the zodiac. The name means The Lion. Leo is bordered on the north by Leo Minor and Ursa Major, on the east by Cancer, on the south by Crater and Sextans, and on the west by Coma Berenices and Virgo. See more »

  • Libra


    Libra, a constellation and the seventh sign of the zodiac. The sun formerly entered Libra in autumn, when days and nights balance each other in length. See more »

  • Lyra


    Lyra, or The Harp, a constellation in the Northern Hemisphere, between Hercules and Cygnus. See more »

  • Orion (astronomy)

    Orion (astronomy)

    Orion, in astronomy, a prominent constellation visible from almost the entire earth. See more »

  • Pegasus (constellation)

    Pegasus (constellation)

    Pegasus, a constellation in the Northern Hemisphere. It is clearly visible in the autumn during the early evening. See more »

  • Perseus (constellation)

    Perseus (constellation)

    Perseus, a constellation in the Northern Hemisphere that can be easily seen in the early evening during autumn and winter. See more »

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