heliacal

Example Sentences

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They approximated to the truth in reference to the solar year, by observing the equinoxes and solstices, and the heliacal rising of particular stars.

From The Old Roman World, : the Grandeur and Failure of Its Civilization. by Lord, John

And precisely at the moment of the heliacal rising of Arcturus, also rose Spica Virginis.

From Morals and Dogma of the Ancient and Accepted Scottish Rite of Freemasonry by Pike, Albert

On the ceiling of the Memnonium at Thebes the heliacal rising of Sirius is represented under the form and name of Isis.

From Astronomical Curiosities Facts and Fallacies by Gore, J. Ellard

The festivals were marked by the periodical return of certain astronomical phenomena, and those heliacal risings to which any mythological ideas were attached, were noted with great care.

From Astronomical Myths Based on Flammarions's History of the Heavens by Blake, John F.

Sothic, sō′thik, adj. of or pertaining to the dog-star Sothis or Sirius.—Sothic cycle, or period, a period of 1460 years; Sothic year, the ancient Egyptian fixed year, according to the heliacal rising of Sirius.

From Chambers's Twentieth Century Dictionary (part 4 of 4: S-Z and supplements) by Various