Published 19:28 IST, September 24th 2024
A New 'Mini-Moon' is Coming To Earth. Here's What We Know of It
Earth has captured Asteroid 2024 PT5 as a temporary mini-moon, offering scientists a rare opportunity to study it closely.
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New Delhi: In exciting news for space and science enthusiasts, Earth has found a new "mini-moon." This is not first time Earth's gravity has captured a celestial object to orbit planet. latest visitor, Asteroid 2024 PT5, has entered Earth's gravitational field, providing scientists with a rare opportunity to study such small celestial objects up close.
33-foot asteroid, 2024 PT5, has been grually approaching Earth's orbit. It has now reached a critical point where Earth's gravitational pull overpowered Sun's, binding asteroid to our planet. asteroid is now subject to two forces: Earth's gravity and Sun's gravitational pull. This unique balance has me 2024 PT5 a temporary satellite to Earth, earning it title of "mini-moon."
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What is a Mini-Moon?
A mini-moon refers to a small celestial body, typically an asteroid, that is temporarily captured by Earth's gravitational pull. se events are relatively rare, occurring every few deces. Discovered by Asteroid Terrestrial-Impact Last Alert System (ATLAS) on August 7, Asteroid 2024 PT5 is latest object to be drawn into Earth's orbit. Measuring just 33 feet (10 meters) in diameter, it is too small to be observed without specialized equipment.
Though its stay will be brief, 2024 PT5 is expected to complete one orbit around Earth before breaking free from our planet's gravity and returning to a solar orbit. Previous mini-moons, such as 2022 NX1, have h similarly short-lived visits.
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For an asteroid to achieve mini-moon status, it must approach Earth at a relatively slow speed, allowing Earth's gravity to capture it for a short period. This rare phenomenon offers valuable insights into dynamics of near-Earth objects.
How Long Will Asteroid 2024 PT5 Remain a Mini-Moon?
Asteroid 2024 PT5 will remain in Earth's orbit until late November this year. During this time, asteroid will follow a complex orbital path influenced by both Sun's and Earth's gravitational forces. This is a prime opportunity to study asteroid, potentially revealing valuable data about its composition, structure, and orbital behavior.
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Once its time as Earth's satellite ends, 2024 PT5 will continue its journey around Sun, though its trajectory will be slightly altered due to its interaction with Earth.
How Does Earth Capture Mini-Moons?
Mini-moons are typically captured from Near-Earth Object (NEO) population, which includes asteroids and or celestial bodies that pass close to Earth. NASA classifies any object within 120 million miles (190 million kilometers) of Earth as a NEO, and those within 4.7 million miles (7.5 million kilometers) as potentially hazardous. Fortunately, 2024 PT5 poses no threat to Earth.
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Asteroid 2024 PT5 is classified as an Apollo-class NEO, meaning it follows an orbit similar to previous mini-moons like 2022 NX1. se short-term captures occur when small bodies lose energy and become temporary satellites of Earth. Longer capture events, lasting several years, are much rarer, occurring approximately once every 10 to 20 years.
Gravitational disturbances from Sun eventually cause mini-moons to escape Earth's orbit. After its brief stay, 2024 PT5 will return to Arjuna asteroid belt, where it originated.
Can Skywatchers See 2024 PT5?
Despite excitement surrounding 2024 PT5, most skywatchers won't be able to see it due to its small size. At just 10 meters wide, asteroid is too tiny to be visible to naked eye or even most telescopes. However, its discovery highlights ever-changing nature of space around Earth.
Future of Mini-Moons
Mini-moons like 2024 PT5 hold potential beyond ir novelty. Research suggests that such asteroids may contain valuable minerals and water, which could one day be used as resources for space exploration. y could serve as "stepping stones" for asteroid mining companies, vancing humanity's ventures into space.
Asteroid 2024 PT5 is expected to pass Earth again in January 2025 and later in 2055. Each new discovery of a mini-moon provides scientists with invaluable data that helps deepen our understanding of universe and its dynamic systems. As detection capabilities improve, we may find more of se temporary satellites, offering furr opportunities for exploration and study.
19:22 IST, September 24th 2024