U+1F09 "Ἁ" Greek Capital Letter Alpha with Dasia Unicode Character

U+1F09 "Ἁ" Greek Capital Letter Alpha with Dasia is a Greek letter used primarily in polytonic orthography, where it represents an Ancient Greek vowel sound with rough breathing, known as dasia, indicating an initial /h/ sound before the alpha. This character is part of the Unicode block for Greek and Coptic and is encoded for use in scholarly texts, classical literature, and linguistic studies that require precise representation of ancient pronunciation. It appears in modern contexts only for specialized academic or liturgical purposes, such as in editions of Homer or the Greek New Testament, where the attached diacritical mark distinguishes it from the smooth‑breathing alpha.