Thorium Mod Wiki
Yuma's Pendant.png
Yuma's Pendant.png
This is a donator item! It is dedicated to: catsounds
Stellar System
  • Stellar System item sprite
Stack digit 1.png
Damage50 Summon
Knockback4 Weak
Use time24 Fast
TooltipSurrounds you in an orbit of planetoids, which can be launched with left click
Inflicts DebuffFreezing.pngFreezing
Debuff duration0.33 seconds orbiting
2 seconds fired
Debuff tooltipThis enemies movement speed is noticeably lowered
Inflicts DebuffMelting.pngMelting
Debuff duration0.33 seconds orbiting
3 seconds fired
Debuff tooltipRapidly losing life
RarityRarity level: Donator
Sell30000*3 Gold Coin.png
Not to be confused with Stellar Rod, another donator summon weapon.

The Stellar System is a craftable Hardmode summon weapon. While held, the player will be surrounded by three rings of orbiting planetoids: six meteorites, four icy cores, and two miniature suns. Enemies that come into contact with these planetoids will take damage, but using the weapon will command one of the planetoids to fly towards the cursor's position. The planetoids fired start from the inner orbit's meteorites and continue until the miniature suns are fired. Planetoids are able to phase through tiles, but can only deal damage to enemies within line of sight of the player.

Icy cores inflict the Freezing debuff on hit and miniature suns inflict the Melting debuff on hit. After a planetoid has been fired, its position on the orbit will become grayed out, slowly filling up over the course of 5 seconds, where it then can be fired again.

Its best Modifier is Mythical, even though it deals summon-type damage.



Crafting Station
Mythril Anvil.pngMythril Anvil /
Orichalcum Anvil.pngOrichalcum Anvil
Ingredient(s) Amount
Meteorite Bar.png Meteorite Bar 20
Forbidden Fragment.png Forbidden Fragment 2
Frost Core.png Frost Core 2
Stellar System.png Stellar System 1


  • Attacking enemies with the orbiting planetoids deals half the weapon's damage, and causes the inflicted debuffs to have a significantly shorter duration.
  • If the Show Donator Item Color configuration option is disabled, the Stellar System will have a rarity of Rarity Level: 5 instead of the standard Rarity level: Donator.