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The Oort cloud (/ ɔːr t, ʊər t /), [1] sometimes called the Öpik–Oort cloud, [2] is theorized to be a vast cloud of icy planetesimals surrounding the Sun at distances ranging from 2,000 to 200,000 AU (0.03 to 3.2 light-years). [3] [note 1] [4] The concept of such a cloud was proposed in 1950 by the Dutch astronomer Jan Oort, in whose ...
C/2014 UN 271 (Bernardinelli–Bernstein), simply known as C/2014 UN 271 or Comet Bernardinelli–Bernstein (nicknamed BB), [3] is a large Oort cloud comet discovered by astronomers Pedro Bernardinelli and Gary Bernstein in archival images from the Dark Energy Survey.
The comet, also known as Comet A3, is about 44 million miles from Earth and likely originated from the Oort Cloud. It last passed Earth 80,000 years ago. ... Photos show Comet C/2023 A3 ...
Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."
2012 VP 113 (possibly inner Oort cloud) Sedna, a dwarf planet (possibly inner Oort cloud) Oort cloud (hypothetical) Hills cloud/inner Oort cloud; Outer Oort cloud; The Solar System also contains: Comets. List of periodic comets; List of near-parabolic comets; Small objects, including: Meteoroids; Interplanetary dust. Helium focusing cone ...
Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."
Objects move slowest when furthest from the Sun (aphelion) and fastest when closest to the Sun (perihelion) and this is why Oort cloud comets spend most of their time in the Oort cloud. While in the Oort cloud these objects are subject to numerous small perturbations that can make notable changes to the orbital period and/or make the object ...
The Oort cloud (/ ɔːr t, ʊər t /), sometimes called the Öpik–Oort cloud, is theorized to be a vast cloud of icy planetesimals surrounding the Sun at distances ranging from 2,000 to 200,000 AU (0.03 to 3.2 light-years). The concept of such a cloud was proposed in 1950 by the Dutch astronomer Jan Oort, in whose honor the