Aster (Amharic: አስቴር) is the Ethiopian form of Esther — also the Greek aster (star). Aster Aweke (born 1961) is the iconic Ethiopian singer.
Aster is widely used in Ethiopia and Eritrea.
Aster does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
In Pythagorean numerology the letters of Aster reduce to 9, The Giver. This is a traditional interpretive system, not a factual claim about the name.