The Greek noun astron refers to a star or constellation — a celestial body used for navigation, timekeeping, and in the ancient world, as a sign of divine activity. Unlike aster (individual star), astron can refer to star-groups or stars collectively.
Stars carry profound theological significance in Scripture. God created them (Genesis 1:16) and knows them by name (Psalm 147:4). Abraham's descendants were promised to be as numerous as the stars (Genesis 15:5). Paul draws on star imagery to describe degrees of resurrection glory (1 Corinthians 15:41). Revelation depicts the exalted Christ holding seven stars (Revelation 1:16) and identifying Himself as 'the bright Morning Star' (Revelation 22:16). The heavens declare God's glory (Psalm 19:1) — and stars are His most visible declaration.