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A List of Northern Fall Constellations

The International Astronomical Union recognizes 88 constellations. The ancient Greeks were among the first people to record the constellations, naming the star groupings for Greek gods and heroes. Today, the IAU uses the constellations as boundary patterns for the naming of new stars. Different constellations are seen throughout the year and in different parts of the night sky. To observe all of the constellations, you will have to travel to different latitudes.
  1. Fall Northern Constellations

    • During the fall months, 33 of the 88 recognized constellations are partially or wholly visible in the northern skies. These include: Andromeda, Aquarius, Aquila, Auriga, Bootes, Camelopardalis, Cancer, Canis Minor, Cassiopeia, Cepheus, Corona Borealis, Cygnus, Delphinus, Draco, Equuleus, Gemini, Hercules, Hydra, Lacerta, Lynx, Lyra, Ophiuchus, Orion, Pegasus, Perseus, Pisces, Sagitta, Serpens Cauda, Taurus, Triangulum, Ursa Major, Ursa Minor and Vul. The constellations shift each month as the Earth rotates on its axis, appearing higher or lower in the sky.

    September Sky

    • The autumnal equinox occurs on September 22 each year, signaling the start of fall. In the northwest night sky, the visible constellations include Bootes, Sagitta, Ursa Major and Ursa Minor. Corona Borealis, Hercules, Cepheus and Cygnus are also visible in the northwest as well as portions of Aquila, Serpens Cauda, Ophiuchus and Lacerta. To the northeast the visible constellations include Draco, Cepheus, Cassiopeia, Andromeda, Perseus, Pisces, Triangulum, Pegasus and Ursa Minor, and portions of Aquarius and Ursa Major.

    October Sky

    • As the Earth rotates on its axis, the celestial sky changes in October. Many of September's constellations remain visible, but in different positions and angles. Delphinus, Equuleus, Lyra and Vul are visible, while Bootes and Ursa Major are lower in the night sky and beginning to move from view in the northwest. In the northeast sky, Auriga, Camelopardalis, Lynx and Taurus become fully visible along with Triangulum and Aries.

    November Sky

    • The November sky changes once again with several constellations rotating into the northwestern sky from the northeast, including Cassiopeia, Perseus and Pegasus. Hercules begins to appear lower in the northwestern sky as it moves toward the south. To the northeast, Gemini and Orion appear, while Ursa Major and Lynx rotate lower in the night sky. Cassiopeia, Cepheus and Ursa Minor are visible from both the northwest and the northeast.

    December Sky

    • December 20 signals the end of the fall season. With the shifting of the Earth's axis once again, the fall night sky changes. Pegasus and Andromeda are fully visible in the northwest. Cassiopeia, Camelopardalis and Cepheus appear in the northwest and the northeast. Sagitta and Lyra have moved almost completely below the horizon, though portions remain visible in the northwest, while Aries and Auriga are positioned high in the night sky. Cancer, Hydra and Canis Minor are beginning to appear in the northeastern sky.


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