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The average near-Earth asteroid, such as 2019 VF 5, passes Earth at 18 km/s. The average short-period comet passes Earth at 30 km/s, and the average long-period comet passes Earth at 53 km/s. [10] A retrograde parabolic Oort cloud comet (e=1, i=180°) could pass Earth at 72 km/s when 1 AU from the Sun.
Toutatis is also a Mars-crosser asteroid with a chaotic orbit produced by a 3:1 resonance with the planet Jupiter, a 1:4 resonance with the planet Earth, and frequent close approaches to the terrestrial planets, including Earth. [12] In December 2012, Toutatis passed within about 18 lunar distances of Earth.
On April 10, 2020, the Juno spacecraft observed a fireball on Jupiter that was consistent with the impact of a 1–4-meter (3.3–13.1 ft) meteor. It was the first fireball to be detected by Juno. Researchers estimate Jupiter experiences approximately 24,000 impact events of this size per year—around 2.7 per hour.
The asteroid, named by the space agency as "2024 ON," is 621,000 miles from Earth. NASA has issued a high alert regarding a large asteroid that is set to pass by Earth. The NASA Jet Propulsion ...
One of the asteroids, named 2013 FW13, measures around 510 feet in diameter and will pass by Earth on Wednesday. NASA's Asteroid Watch Dashboard tracks "asteroids and comets that will make ...
It gained one gravity assist from Earth a year later on 16 October 2022, [12] and after making a flyby of the asteroid 152830 Dinkinesh in 2023, [13] it will gain another gravity assist from Earth in 2024. [14] In 2025, it will fly by the inner main-belt asteroid 52246 Donaldjohanson, which was named after the discoverer of the Lucy hominin ...
99942 Apophis (provisional designation 2004 MN4) is a near-Earth asteroid and a potentially hazardous object with a diameter of 370 metres (1,210 feet) [3] that caused a brief period of concern in December 2004 when initial observations indicated a probability up to 2.7% that it would hit Earth on April 13, 2029.
The Jupiter trojans are divided into two groups: The Greek camp in front of and the Trojan camp trailing behind Jupiter in their orbit. The Jupiter trojans, commonly called trojan asteroids or simply trojans, are a large group of asteroids that share the planet Jupiter 's orbit around the Sun. Relative to Jupiter, each trojan librates around ...