All star cluster synonyms
star clus·ter
S s noun star cluster
- milky way — the spiral galaxy containing our solar system. With the naked eye it is observed as a faint luminous band stretching across the heavens, composed of approximately a trillion stars, most of which are too distant to be seen individually.
- galaxy — Astronomy. a large system of stars held together by mutual gravitation and isolated from similar systems by vast regions of space. (usually initial capital letter) Milky Way.
- irregular galaxy — a galaxy with no specific form and a relatively low mass.