Mini-Moon Alert: Asteroid 2024 PT5 to Orbit Earth This Fall

September 18, 2024
Mini-Moon Alert: Asteroid 2024 PT5 to Orbit Earth This Fall
  • A small asteroid named '2024 PT5' is set to orbit Earth from late September to late November 2024.

  • Discovered on August 7, this asteroid was identified using the Asteroid Terrestrial-impact Last Alert System (ATLAS), a NASA-funded initiative with telescopes located in Hawaii, Chile, and South Africa.

  • Astrophysicist Federica Spoto from the Harvard-Smithsonian Center for Astrophysics described the upcoming capture of 2024 PT5 as 'pretty cool'.

  • Mini-moon events, like the one involving 2024 PT5, can be categorized into long episodes lasting years and short engagements that last weeks or months.

  • Due to its size and distance, 2024 PT5 is unlikely to be visible to the naked eye, but NASA offers a virtual asteroid tracker for real-time monitoring.

  • NASA has increased its focus on asteroid threats in recent years, recognizing that these celestial bodies are remnants from the solar system's formation approximately 4.6 billion years ago.

  • In 2023, NASA allocated $90 million for near-Earth object detection efforts, supporting projects like the Sutter Ultra and the NEOsurveyor infrared telescope.

  • Monitoring of asteroids has intensified since the 1990s, with telescopes being utilized to observe and track moving objects in the night sky.

  • The alert regarding 2024 PT5 also includes four additional asteroids, three of which are house-sized and one building-sized.

  • It is relatively rare for asteroids to come close to Earth, as most pass by at a distance, with few entering the atmosphere or causing impact craters.

  • The case of 2024 PT5 exemplifies the importance of global collaboration in accurately tracking small asteroids.

  • A mini-moon is defined as an object caught in Earth's orbit due to its gravitational pull, similar to how satellites operate.

Summary based on 23 sources


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