The sun, which gives us light and heat, is a fixed star.

太阳是一颗恒星，它给我们光和热。

youdao

Well, the black man has functioned in the white man's world as a fixed star, as an immovable pillar: and as he moves out of his place, heaven and earth are shaken to their foundations.

NPR: An Author's Companion in Rage, Exile and Return

However, for the star value they bring their franchise as a fixed cost, they are highly underpaid.

FORBES: The Enormous Value Of LeBron James

Is a star as solid as he is really the right choice to play a ghostly drifter of no fixed abode?

NEWYORKER: Violent Screen