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HomeThe Sky Tonight— images from historic star atlases, keyed to the modern constellations
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  • IAU Constellations (88)
  • Asterisms and Historic Constellations
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The Zodiac

  • Zodiac index
  • Zodiacal Motion of the Moon
  • Zodiacal Motion of the Inner Planets
  • Zodiacal Motion of the Outer Planets

Each year the Sun moves eastward in a complete circle around the sky. The path followed by the Sun is called the ecliptic, and any constellation containing the ecliptic is called a zodiac constellation.

Representations - Other
Zodiac
  • Zodiac Constellations
  • Zodiacal Motion

Book traversal links for The Zodiac

  • Heliacal Rising and Sidereal Year
  • Up
  • Zodiac Constellations

Representations - Other

Observing

  • Get started
  • Tour of the Sky Tonight website
  • Other Representations
  • What are basic celestial phenomena?
  • Three Coordinate Systems
  • The Bowl of Night: Horizon
  • The Starry Sphere: Celestial Equator
  • The Starry Sphere: Zodiac and Ecliptic
    • Risings and Settings - Location
    • Equinoxes
    • Solstices
    • The Seasons
    • The Ecliptic
    • The Zodiac
      • Zodiac Constellations
      • Zodiacal Motion
    • Eclipses
    • Precession
  • Observing Instruments
  • Observing the Moon

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Full contents, expanded

All pages in the "Observing" section are being extensively revised and updated. Diagrams from historic and modern sources will be added. This section is being adapted from an old BCP site by Kerry Magruder; links not yet updated may take you there.

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Kerry Magruder, Brent Purkaple, and Aja Tolman, editors, "The Sky Tonight: Cultural Archaeology of the Stars" (December 21, 2019 - ongoing), skytonight.org.


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