Junk planet
From Tardis Wiki, the free Doctor Who reference
A junk planet was a type of planet that was covered in garbage and scrap, often used deliberately to store Waste. Seffilun 27 and Seffilun 59 were both junk planets located within a junk galaxy. (TV: The Tsuranga Conundrum)
Kolkokron was a junk planet orbiting a dying star. (AUDIO: Time in Office) The Fifth Doctor and Tegan Jovanka left the Gravis there. (TV: Frontios)