File:Small objects in the Solar System ESA25188647.jpg
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Summary
DescriptionSmall objects in the Solar System ESA25188647.jpg |
English: The Solar System consists of more than just the Sun and the planets. Dwarf planets and so-called ‘small Solar System bodies’ — a term that includes comets and asteroids — also orbit the Sun. This illustration shows three of the best places to go looking for them. Closest to home, between the orbits of Mars and Jupiter, lies the asteroid belt. As the name implies, the main asteroid belt is a doughnut-shaped ring consisting mostly of asteroids. These orbit the Sun at a distance of 2.1–3.3 AU, where 1 AU is the Earth-Sun distance of around 150 million km. The total mass of objects in the asteroid belt is estimated to be around 3% of the mass of the Moon. 30–50 AU from the Sun, beyond the orbit of Neptune, lies the Kuiper Belt. The Kuiper Belt is home to dwarf planet Pluto and thought to be an important refuge of comets. It is similar in shape to the asteroid belt, but 20 times as wide and 20–200 times as massive. So distant that it’s never been seen directly, the Oort Cloud is a shell of icy objects thought to surround the entire Solar System. The region can be subdivided into a spherical outer Oort Cloud with a radius of some 20 000–200 000 AU and a doughnut-shaped inner Oort Cloud with a radius of 2000–20 000 AU. The Oort Cloud is home to billions of comets, some of which we have seen passing through the inner Solar System on orbits that take thousands or even millions of years to complete. |
Date | 20 November 2023 (upload date) |
Source | Small objects in the Solar System |
Author | European Space Agency |
Activity InfoField | Space Science |
Keyword InfoField | comet Comets Comets and Asteroids Asteroids Asteroid Belt Celestial body Solar system Solar system Outer Solar System |
Mission InfoField | Comet Interceptor Giotto Hera Rosetta |
Licensing
This media was created by the European Space Agency (ESA).
Where expressly so stated, images or videos are covered by the Creative Commons Attribution-ShareAlike 3.0 IGO (CC BY-SA 3.0 IGO) licence, ESA being an Intergovernmental Organisation (IGO), as defined by the CC BY-SA 3.0 IGO licence. The user is allowed under the terms and conditions of the CC BY-SA 3.0 IGO license to Reproduce, Distribute and Publicly Perform the ESA images and videos released under CC BY-SA 3.0 IGO licence and the Adaptations thereof, without further explicit permission being necessary, for as long as the user complies with the conditions and restrictions set forth in the CC BY-SA 3.0 IGO licence, these including that:
See the ESA Creative Commons copyright notice for complete information, and this article for additional details.
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This file is licensed under the Creative Commons Attribution-ShareAlike 3.0 IGO license. Attribution: ESA (acknowledgement: work performed by ATG under contract to ESA), CC BY-SA IGO 3.0
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20 December 2023
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 06:00, 17 November 2023 | 4,000 × 1,465 (866 KB) | OptimusPrimeBot | #Spacemedia - Upload of https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2023/11/small_objects_in_the_solar_system/25188636-2-eng-GB/Small_objects_in_the_Solar_System.jpg via Commons:Spacemedia |
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Orientation | Normal |
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Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop 25.1 (Windows) |
File change date and time | 09:34, 31 October 2023 |
Color space | Uncalibrated |
Date and time of digitizing | 13:40, 27 October 2023 |
Date metadata was last modified | 10:34, 31 October 2023 |
Unique ID of original document | xmp.did:fd4579f8-74ba-6146-852b-999feda28403 |