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Jupiter might have shaped the Solar System on its grand tack. In planetary astronomy, the grand tack hypothesis proposes that Jupiter formed at a distance of 3.5 AU from the Sun, then migrated inward to 1.5 AU, before reversing course due to capturing Saturn in an orbital resonance, eventually halting near its current orbit at 5.2 AU.
an impact per year on Jupiter, from considerations relating to the craterization of the surfaces of the satellites; [63] 30–100 collisions per year, basing the data on asteroid and cometary populations near the planet's orbit. [63] For comparison, a frequency of impact with an object of this size every 6–15 years has been estimated for the ...
A list of known near-Earth asteroid close approaches less than 1 lunar distance (384,400 km or 0.00257 AU) from Earth in 2012. [note 1] Rows highlighted red indicate objects which were not discovered until after closest approach
(668643) 2012 DR 30 is a trans-Neptunian object and centaur from the scattered disk and/or inner Oort cloud, located in the outermost region of the Solar System. The object with a highly eccentric orbit of 0.99 was first observed by astronomers with the Spacewatch program at Steward Observatory on 31 March 2009. [ 2 ]
NASA’s Lucy mission flew by the asteroid Dinkinesh ... the space rock autonomously and keep it within view while flying by at 10,000 miles per hour (4.5 kilometers per second). ... is to explore ...
Some models indicate that the L 4 swarm may be slightly more stable than the L 5 swarm. [10] The largest Jupiter trojan is 624 Hektor, which has a mean diameter of 203 ± 3.6 km. [15] There are few large Jupiter trojans in comparison to the overall population. With decreasing size, the number of Jupiter trojans grows very quickly down to 84 km ...
The orbit of this asteroid is shown in blue when it is above the plane of the orbit of Jupiter, and in magenta when it is below the plane of the orbit of Jupiter. [3] The second diagram shows one complete orbit of asteroid Kaʻepaokaʻawela in a frame of reference rotating with Jupiter. The view is from the side looking into the Solar System.
2012 BX 34 is a small Aten asteroid that made one of the closest recorded asteroid close approaches of Earth on 27 January 2012. It passed within 0.0004371 AU (65,390 km ; 40,630 mi ) of Earth during its closest approach at 15:25 GMT.