adjective🔗ShareHéliaque, relatif au soleilOf or relating to the Sun, especially rising and setting with the sun."The ancient Egyptians based their calendar on the heliacal rising of the star Sirius, which coincided with the annual flooding of the Nile. "Les anciens Égyptiens basaient leur calendrier sur le lever héliaque de l'étoile Sirius, qui coïncidait avec les crues annuelles du Nil.astronomyastrologytimeweatherChat with AIVocabulary GamePractice Reading
adjective🔗SharehéliaqueOf or relating to the rising of a star when it first becomes visible just before sunrise in the eastern sky, having previously been made invisible by sunlight, or the analogous situation of its setting just after sunset."The farmer knew it was time to plant when he observed the heliacal rising of the star Sirius. "Le fermier savait qu'il était temps de planter lorsqu'il observa le lever héliaque de l'étoile Sirius.astronomyastrologytimespacenaturephenomenaChat with AIVocabulary GamePractice Reading