heliacal in a sentence
a.
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Definition
Heliacal refers to the rising or visibility of a celestial body, particularly a star or planet, just before sunrise or at dawn.
Sample Sentences
- The heliacal rising of the star Sirius marked the beginning of the ancient Egyptian new year.
- Astronomers noted the heliacal visibility of several planets during the summer solstice.
- In many cultures, heliacal events were celebrated as significant markers of time and season.
- The heliacal appearance of a constellation often coincided with important agricultural practices.
- Scholars studied the heliacal phenomena to understand the alignments of ancient monuments.