Astronomer is a trinket in TBoI: Regambled, a mod for The Binding of Isaac.

UNCOMMON | Base price: 8 coins

This Joker is only available while playing as Jimbo or Tainted Jimbo.

+20% planetarium chance.
(chance given halves every time one is visited)

Planetariums can spawn in any non-special floor. Tainted Jimbo: Same effect as base game.

---

Tainted Jimbo: Same effect as base game.

• Check out the trinket description on the mod's external Wiki.
• Download TBoI: Regambled from the Steam Workshop.