File:Three Pillars of Astronomy.jpg
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Summary
[edit]DescriptionThree Pillars of Astronomy.jpg |
English: This picture, taken at the La Silla Observatory in Chile, shows the full Moon low in the purple sky, a photographer crouching on the rocks, and the New Technology Telescope (NTT) perched on a hilltop. This image depicts the three things we need for observational astronomy: An object to observe, a telescope to observe it, and a person to make sense of the observations.
The Moon is the closest celestial body to Earth and orbits at a distance of 400 000 kilometres as our only natural satellite. Despite the aesthetic glow of the full Moon in this image, the Moon is not a great friend to astronomers. Sunlight that reflects off the lunar surface causes light pollution and makes it harder to observe more distant and very faint objects. Light pollution does not, however, bother the man admiring the view here. This is Babak A. Tafreshi, one of ESO's Photo Ambassadors. The gap between astronomers and extraterrestrial bodies is bridged by the telescope. In this picture we can see ESO's NTT, a telescope first installed in 1989 and completely upgraded in 1997 in the "NTT-Big Bang". A key feature of the NTT is that it pioneered the use of active optics to adjust the thin telescope mirror so that it is always the optimum shape to form the sharpest images. |
Date | |
Source | http://www.eso.org/public/images/potw1602a/ |
Author | ESO/B. Tafreshi (http://twanight.org) |
Licensing
[edit]This 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 | 15:55, 14 February 2024 | 5,895 × 3,672 (4.01 MB) | C messier (talk | contribs) | full size | |
11:23, 11 January 2016 | 1,280 × 797 (123 KB) | Jmencisom (talk | contribs) | User created page with UploadWizard |
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Metadata
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Image title |
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Author | BabakTafreshi |
Copyright holder |
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Credit/Provider | ESO/B. Tafreshi (http://twanight.org) |
Source | European Southern Observatory |
Usage terms |
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Short title |
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Date and time of data generation | 06:00, 11 January 2016 |
Software used | Adobe Photoshop CC 2014 (Windows) |
Copyright status | Copyright status not set |
Unique ID of original document | B9566FFD202BEF358465EB4EF763BFA0 |
Keywords | New Technology Telescope |
Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |
IIM version | 4 |