zvezdan

1. (of the sky, night) starry
   Ležali smo na travi i gledali zvezdano nebo. — We lay on the grass looking at the starry sky.
   Bila je topla, zvezdana noć. — It was a warm, starry night.
2. star; stellar
   Moj sin obožava film „Zvezdani ratovi”. — My son adores Star Wars.

In the relational sense "star, stellar" the definite form zvezdani is usually used.