- March 27, 2021
- Posted by: OptimizeIAS Team
- Category: DPN Topics
Subject: Science & tech
Context : Interception mission to confirm ‘Oumuamua, other interstellar objects, in the works.
- Oumuamua is the first known interstellar object to pass through the Solar System.
- The Interstellar object 1I/2017 U1 has been named by the Pan-STARRS observatory team as ‘Oumuamua’.
- The name is of Hawaiian origin and means “a messenger from afar arriving first.”
- The object was discovered on Oct. 19, 2017 by the NASA-funded Pan-STARRS1 telescope. Initially assumed to be a comet, it was reclassified as an asteroid a week later, then the first of a new class of interstellar objects.
- Journey: Scientists don’t know which star system this object came from. 1I/2017 U1’s trajectory indicates it came from the general direction of the constellation Lyra.
- It is on an outbound trajectory. It will pass above Neptune’s orbit in 2022. As it leaves our solar system it is headed towards the constellation Pegasus.
- Size and Shape: The object is believed to be at least a quarter-mile (400 meters) long and cigar-shaped, with a length roughly ten times longer than the width.
- Composition: It is similar to many asteroids found in our solar system – dense, possibly rocky or even metallic. The object’s surface is somewhat reddish due to effects of irradiation from cosmic rays over millions of years.