IPA: /hɪˈlaɪ.ək/
KK: /hɪˈlaɪ.ək/
Relating to the sun or the sun's position in the sky.
The heliacal rising of the star marked the beginning of the new year for the ancient Egyptians.
Heliac → It is derived from the Greek word "helios" (meaning sun). The term "heliac" refers to something related to or resembling the sun.
Think of the Greek word for sun, 'helios', to remember that 'heliac' relates to the sun.