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ʻOumuamua (Hawaiian: first messenger arriving from afar)[1] is an object from another star system that visited our solar system. Its official name is 1I/2017 U1.

ʻOumuamua is the first interstellar object that we know has passed through our solar system.[2] Oumuamua was first discovered on 19 October 2017 using the Pan-STARRS1 telescope at the Haleakala Observatory in Hawaii.[3]

Its appearance is long and narrow, and it had a dark red color, similar to objects in the outer Solar System.

References[change | change source]

  1. Gareth V. Williams (November 6, 2017). "MPEC 2017-V17: New Designation Scheme for Interstellar Objects". minorplanetcenter.net.
  2. Karen Northon (June 27, 2018). "Our Solar System's first known interstellar object gets unexpected speed boost". nasa.gov.
  3. Karen J. Meech et al (November 1, 2017). "Discovery and characterization of the first known interstellar object". Nature. https://www.eso.org/public/archives/releases/sciencepapers/eso1737/eso1737a.pdf.