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  1. Heliacal rising - Wikipedia

    • The heliacal rising of a star or a planet occurs annually when it becomes visible above the eastern horizon at dawn just before sunrise (thus becoming "the morning star"). A heliacal rising marks the time when a star or planet becomes visible for the first time again in the night sky after having set with the Sun at the western horizon in a previous sunset (its heliaca… See more

    Cause and significance

    Relative to the stars, the Sun appears to drift eastward about one degree per day along a path called the ecliptic because … See more

    Non-application to circumpolar stars

    Some stars, when viewed from latitudes not at the equator, do not rise or set. These are circumpolar stars, which are either always in the sky or never. For example, the North Star (Polaris) is not visible in Australia and the … See more

    History

    Constellations containing stars that rise and set were incorporated into early calendars or zodiacs. The Sumerians, Babylonians, Egyptians, and Greeks all used the heliacal risings of various stars for the timing of agricultural … See more

    Acronycal and cosmic(al)

    The rising of a planet above the eastern horizon at sunset is called its acronycal rising, which for a superior planet signifies an opposition, another type of syzygy. When the Moon has an acronycal rising, it will occur near … See more

     
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  2. The heliacal rising (/ hɪˈlaɪ.əkəl / hih-LY-ə-kəl) or star rise of a star occurs annually, or the similar phenomenon of a planet, when it first becomes visible above the eastern horizon at dawn just before sunrise (thus becoming "the morning star ") after a complete orbit of the Earth around the Sun. Historically, the most important such rising is that of Sirius, which was an important feature of the Egyptian calendar and...

    en.wikipedia.org/wiki/Heliacal_rising
    Heliacal rising happens after the Sun "passes" a star as the Sun "moves" easterly direction through the year. Star's are first engulfed by the light of the Sun, then as the Sun leaves them "behind" they appear to rise before the Sun in the morning.
    en.wikipedia.org/wiki/Talk:Heliacal_rising
     
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  5. Pleiades in folklore and literature - Wikipedia

    The Shasta people tell a story of the children of raccoon killed by coyote avenging their father's death and then rising into the sky to form the Pleiades. The smallest star in the cluster is said to be coyote's youngest who aided the young raccoons.

  6. Heliacal and Acronychal Risings and Settings - GeoAstro

    The "heliacal rising " (morning first): is the first day of the year when the star (after a period when it was invisible) rises in the morning before the Sun and the Sun is still far enough below the eastern horizon to make it briefly visible in the …

  7. The critical concept of heliacal rising - Star Myths of …

    Aug 2, 2011 · The diagram and discussion above should help you gain a clear understanding of the critical concept of heliacal rising.

  8. A Real Scorcher! — Sirius At Heliacal Rising - Sky

    Aug 10, 2016 · In ancient Egypt circa 3000 BC, the star's return at dawn after its ~70 day hiatus in the daytime sky coincided with the flooding of the Nile River, the lifeline of Egypt then as today. Floods deposited precious silt that fertilized the …

  9. Heliacal risings and settings - Universal Workshop

    The heliacal rising of a star is the first occasion on which it is seen briefly in the dawn sky, before the rising of the Sun (Greek hêlios). From then on, as the Sun progresses away eastward, the star will be each day slightly farther from the …

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  11. Astrological age - Wikipedia

    Currently at the vernal equinox the constellation of Aquarius has been the heliacal rising constellation for some centuries. The stars disappear about one hour before dawn depending upon magnitude, latitude, and date.

  12. 5 Key Heliacal Risings: Timekeeping in the Ancient …

    In the ancient Greek calendar, the observation of celestial events played a crucial role in timekeeping. Among these events, the heliacal risings of certain stars and constellations held particular significance.

  13. Heliacal Rising - (Intro to Astronomy) - Vocab, Definition

  14. Heliacal rising - Wikiwand

  15. The star Sirius in ancient Egypt and Babylonia - Gautschy

  16. Chapter 33 — The Heliacal rising of Sirius - TYCHOS

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  18. Heliacal rising — Wikipedia Republished // WIKI 2

  19. Show Me a Dawn, or "Heliacal," Rising - Stanford University

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