File:2012 TC4 observed (annotated).jpg
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Summary
[edit]Description2012 TC4 observed (annotated).jpg |
English: Near Earth Asteroid 2012 TC4 appears as a dot at the centre of this composite of 37 individual 50-second exposures obtained with the FORS2 instrument on ESO’s Very Large Telescope. The asteroid is marked with a circle for a better identification. The individual images have been shifted to compensate for the motion of the asteroid, so that the background stars and galaxies appear as bright trails. At magnitude 27, this is the faintest Near Earth Asteroid so far measured.
A small asteroid flying past Earth on 12 October will provide scientists with a valuable opportunity to learn more about its orbit and composition. The campaign will exercise the international network of observatories and research organizations working on planetary defence. Astronomers recently spotted asteroid 2012 TC4 under a collaboration between ESA and the European Southern Observatory (ESO) to locate faint objects that might strike Earth. This is the first observation since 2012, when the asteroid was discovered by the Pan-STARRS observatory in Hawaii. It was found this time by ESO’s Very Large Telescope in Chile. The original observations revealed the asteroid’s next approach to our vicinity would be in October 2017 but its orbit meant that it could not be tracked during the last five years, leaving astronomers unsure on how close it would come. The new observations reveal it will miss Earth by 44 000 km. While it remains visible, astronomers will study the 15–30 m object in as much detail as possible, such as obtaining information on its composition. An asteroid of this size entering our atmosphere would have a similar effect to the Chelyabinsk event.The 2012 TC4 Observing Campaign is part of a larger international initiative led by NASA. The campaign is an excellent opportunity to test the international ability to detect and track near-Earth objects and assess our ability to respond together to a real asteroid threat. |
Date | |
Source | http://www.eso.org/public/images/ann17052a/ - http://www.esa.int/spaceinimages/Images/2017/08/Asteroid_2012_TC4_will_fly_past_Earth_in_October_2017 |
Author | ESO / ESA NEOCC / Olivier Hainaut (ESO), Marco Micheli (ESA) and Detlef Koschny (ESA) |
Title InfoField | Asteroid 2012 TC4 will fly past Earth in October 2017 |
System InfoField | SSA |
Keywords InfoField | Asteroids |
Mission InfoField | Space Situational Awareness (SSA) |
Activity InfoField | Operations |
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current | 22:18, 11 August 2017 | 1,204 × 780 (253 KB) | Jmencisom (talk | contribs) | User created page with UploadWizard |
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Author | ohainaut |
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Copyright holder |
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Credit/Provider | ESO / ESA NEOCC / Olivier Hainaut (ESO), Marco Micheli (ESA) and Detlef Koschny (ESA) |
Source | European Southern Observatory |
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Short title |
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Usage terms |
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Date and time of data generation | 15:00, 10 August 2017 |
JPEG file comment | STIFF image |
Software used | Adobe Photoshop CC 2017 (Windows) |
File change date and time | 10:58, 9 August 2017 |
Date and time of digitizing | 15:52, 8 August 2017 |
Date metadata was last modified | 12:58, 9 August 2017 |
Unique ID of original document | adobe:docid:photoshop:f37d68f3-7c3d-11e7-8efd-fe6fa1634a37 |
Keywords | 2012 TC4 |
Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |
IIM version | 4 |