Planetarium (Item Pool)

Item Pool
Normal/Hard	Treasure Room	Shop	Library	Curse Room	Boss	Secret Room	Devil Room	Angel Room	Golden Chest	Red Chest	Beggar
	Devil Beggar	Key Master	Bomb Bum	Planetarium	Crane Game	Rotten Beggar	Battery Bum	Old Chest	Wooden Chest	Mom's Chest	Baby Shop
Greed Greedier	Treasure Room	Shop	Library	Curse Room	Boss	Secret Room	Devil Room	Angel Room	Golden Chest

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	Icon	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.