Astra sits next to 5 phonetic neighbors — Astrid, Esther, and Stella are the closest matches by sound. Most share Astra's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"star, stars"
"pure, maiden"
"whole, industrious (variant of Emmeline)"
"created fictional name"
"queen, wife of the khal"
"man of God, messenger"
"whirlwind, stormy wind"
"warrior"
"God has answered"
"diminutive of Mary"
"royal meadow"
"heavenly, sky"
"lake, pool"
"optimistic, bright, hopeful"
"peace town"
"meadow of pearls"
"devoted to God"
"of noble character (from aethel)"
"the precious metal, lustrous and bright"
"from Sicily, island in the Mediterranean"
Similar sound: These names share phonetic patterns with Astra — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Astra.
Rhythm: Astra is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.