TNPSC Thervupettagam

Asteroid 2022 AP7

November 17 , 2022 764 days 986 0
  • A team of astronomers has discovered three massive near-Earth asteroids hiding in the glare of the Sun.
  • Of these, one called 2022 AP7 is believed to be the largest planet killer-sized asteroid to be spotted in nearly a decade.
  • It is “potentially hazardous” to Earth.
  • It is 1.5-kilometre-wide and has an orbit that may someday put it on a collision course with our planet.
  • The other two- 2021 LJ4 and 2021 PH27 have orbits that are safely constrained inside the limits of Earth’s orbit.
  • At less than a kilometre in diameter, 2021 LJ4 is the smallest in size.
  • The asteroid, 2021 PH27, is the closest known asteroid to the Sun.
  • Due to this, its surface gets hot enough to melt lead.

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