heliacal
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
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.
The Muhammadan month begins with the heliacal rising of the moon, and this may have taken place on the 24th or 25th evening.
From A Forgotten Empire (Vijayanagar): a contribution to the history of India by Sewell, Robert
This is what is technically known as the "acronical rising" of the Pleiades, their rising at sunset; in contrast to their "heliacal rising," their rising just before daybreak, which ushered in the spring time.
From The Astronomy of the Bible An Elementary Commentary on the Astronomical References of Holy Scripture by Maunder, E. Walter (Edward Walter)
The dies caniculares, or dog-days, were reckoned to begin twenty days before, and to continue for twenty days after, the heliacal rising of Sirius, the dog-star.
From The Astronomy of Milton's 'Paradise Lost' by Orchard, Thomas Nathaniel