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Aten asteroid, Mercury-crosser asteroid, Venus-crosser asteroid (99907) 1989 VA: 0.729: Aten asteroid, Mercury-crosser asteroid, Venus-crosser asteroid. Objects between Venus's and Earth's zones of influence (163693) Atira: 0.74: Atira asteroid, Venus-crosser asteroid (363505) 2003 UC 20: 0.781 [citation needed] Aten asteroid, Venus-crosser ...
From 1949 until the discovery of 3200 Phaethon in 1983, it was known as the asteroid that passed closest to the Sun. Since then hundreds of Mercury-crossers have been found, the closest ones are now being 2005 HC 4 and (394130) 2006 HY 51 (also see List of Mercury-crossing minor planets § List).
One particularly distant body is 90377 Sedna, which was discovered in November 2003.It has an extremely eccentric orbit that takes it to an aphelion of 937 AU. [2] It takes over 10,000 years to orbit, and during the next 50 years it will slowly move closer to the Sun as it comes to perihelion at a distance of 76 AU from the Sun. [3] Sedna is the largest known sednoid, a class of objects that ...
3200 Phaethon (/ ˈ f eɪ. ə ˌ θ ɒ n /; previously sometimes spelled Phæton), provisionally designated 1983 TB, is an active [8] Apollo asteroid with an orbit that brings it closer to the Sun than any other named asteroid (though there are numerous unnamed asteroids with smaller perihelia, such as (137924) 2000 BD 19). [9]
Now, the asteroid’s 3.3-year trip around the sun has been shortened by about 24 days. Objects the size of asteroid 2024 MK only come near the Earth every couple of decades, so astronomers ...
Satellites in geostationary orbit. From the list in the first section, these are the closest known asteroids per year that approach Earth within one lunar distance.More than one asteroid per year may be listed if its geocentric distance [note 1] is within a tenth of the lunar distance, or 0.10 LD.
The pull of the Sun's gravity caused it to speed up until it reached its maximum speed of 87.71 km/s (315,800 km/h; 196,200 mph) as it passed south of the ecliptic on 6 September, where the Sun's gravity bent its orbit in a sharp turn northward at its closest approach (perihelion) on 9 September at a distance of 0.255 AU (38,100,000 km ...
2023 BU · Earth · Sun. The asteroid came to perihelion (closest approach to the Sun) on 27 January 2023, [4] four hours after closest approach with Earth. 2023 BU was first imaged by Gennadiy Borisov at Nauchnyi, Crimea, on 21 January 2023 23:53 UT, [2] about five days before closest approach. It was last observed on 31 January 2023.