Which Happened First?

Discovery of Quaoar

Discovery of Quaoar
Image: Hubble Space Telescope/Michael E. Brown · Public domain · source

Quaoar is a ringed dwarf planet in the Kuiper belt, a band of icy planetesimals beyond Neptune. It has a slightly ellipsoidal shape with an average diameter of 1,100 km (680 mi), about half the size of the dwarf planet Pluto.

Summary from Wikipedia (CC BY-SA 4.0) · Dates from Wikidata (CC0)

Which happened first?

Timeline

  1. Discovery of oganessonJune 2002
  2. Discovery of Quaoar (this page)June 4, 2002
  3. Discovery of (136108) HaumeaMarch 7, 2003
  4. Discovery of ErisOctober 21, 2003
  5. Discovery of moscoviumAugust 2003
  6. Discovery of SednaNovember 14, 2003

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