Planetarium (Item Pool)

Planetariums are special rooms added in The Binding of Isaac: Repentance containing astronomical items. This item pool only has passive items. The only other room based item pool that has this property is the boss room item pool.

Passive Collectibles[]

Name	ID	Weight	Description
Jupiter	5.100.594	1	+2 red Heart containers, -0.3 speed. Isaac builds speed while standing still, and releases poison gas clouds when he moves afterwards.
Luna	5.100.589	1	Adds an extra Secret Room and Super Secret Room to each floor. Secret Rooms contain a beam of light that increases tears for the current floor and gives half a soul heart.
Mars	5.100.593	1	Dash by double-tapping the movement key, becoming invulnerable and damaging enemies. There's a short cooldown before Isaac can dash again.
Mercurius	5.100.590	1	+0.4 speed. Doors stay open after entering a room, even in rooms with enemies.
Neptunus	5.100.597	1	Isaac's mouth fills with tears over time while not firing, up to a cap. Holding the fire button will release all stored tears in rapid succession.
Pluto	5.100.598	1	Significantly shrinks Isaac, allowing him to squeeze between objects and makes some enemy shots pass over him. Also gives +0.7 tears.
Saturnus	5.100.595	1	Upon entering a room, a circle of tears orbits Isaac. Enemy tears have a chance to be caught in orbit, turning them friendly.
Sol	5.100.588	1	Reveals the location of the Boss room. Upon defeating a boss, activates XIX - The Sun, fully recharges Isaac's active item, grants bonus damage and luck for the rest of the floor, and removes curses.
Terra	5.100.592	1	Replaces tears with rocks that deal variable damage, have increased knockback, and can destroy obstacles.
Uranus	5.100.596	1	Isaac shoots ice tears, which slow enemies and freeze monsters they kill. Frozen enemies slide away and explode into ice shards when touched.
Venus	5.100.591	1	Adds one red Heart container. Enemies near Isaac become charmed.