File:Starry night on the Chajnantor Plateau in the Chilean Andes.jpg
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Captions
Summary
editDescriptionStarry night on the Chajnantor Plateau in the Chilean Andes.jpg |
English: Another starry night on the Chajnantor Plateau in the Chilean Andes. The first quarter Moon glows brightly in this exposure, outshining the surrounding celestial objects. However, for radio telescopes such as APEX (the Atacama Pathfinder Experiment), seen here, the brightness of the Moon is not a problem for observations. In fact, since the Sun itself is not too bright at radio wavelengths, and these wavelengths do not brighten the sky in the same way, this telescope can even be used during the daytime, as long as it is not pointed towards the Sun.
APEX is a 12-metre-diameter telescope that observes light at millimetre and submillimetre wavelengths. Astronomers observing with APEX can see phenomena which would be invisible at the shorter wavelengths of infrared or visible light. For instance, APEX can peer through dense interstellar clouds of gas and cosmic dust, revealing hidden regions of ongoing star formation which glow brightly at these wavelengths, but which may be obscured and dark in visible and infrared light. Some of the earliest and most distant galaxies are also excellent targets for APEX. Due to the expansion of the Universe over many billions of years, their light has been redshifted into APEX’s millimetre and submillimetre range. APEX is a collaboration between the Max Planck Institute for Radio Astronomy (MPIfR), the Onsala Space Observatory (OSO) and ESO. Operation of APEX at Chajnantor is entrusted to ESO. This stunning picture was taken by ESO Photo Ambassador Babak Tafreshi. It is part of a larger panorama, which is also available cropped in a different way. |
Date | (released) |
Source | http://www.eso.org/public/images/potw1303a/ |
Author | ESO/B. Tafreshi (twanight.org) |
Licensing
editThis media was created by the European Southern Observatory (ESO).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public ESO website, along with the texts of press releases, announcements, pictures of the week, blog posts and captions, are licensed under a Creative Commons Attribution 4.0 International License, and may on a non-exclusive basis be reproduced without fee provided the credit is clear and visible." To the uploader: You must provide a link (URL) to the original file and the authorship information if available. | |
This file is licensed under the Creative Commons Attribution 4.0 International license.
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current | 10:20, 12 February 2013 | 3,606 × 4,786 (3.42 MB) | Stas1995 (talk | contribs) | ||
10:19, 12 February 2013 | 1,280 × 1,699 (283 KB) | Stas1995 (talk | contribs) | User created page with UploadWizard |
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Credit/Provider | ESO/B. Tafreshi (twanight.org) |
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Source | European Southern Observatory |
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Date and time of data generation | 10:00, 21 January 2013 |
Keywords | Atacama Pathfinder Experiment |
Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |